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class="vector-toc-text"> <span class="vector-toc-numb">2</span> <span>Below the water table</span> </div> </a> <button aria-controls="toc-Below_the_water_table-sublist" class="cdx-button cdx-button--weight-quiet cdx-button--icon-only vector-toc-toggle"> <span class="vector-icon mw-ui-icon-wikimedia-expand"></span> <span>Toggle Below the water table subsection</span> </button> <ul id="toc-Below_the_water_table-sublist" class="vector-toc-list"> <li id="toc-Equation_for_calculation" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Equation_for_calculation"> <div class="vector-toc-text"> <span class="vector-toc-numb">2.1</span> <span>Equation for calculation</span> </div> </a> <ul id="toc-Equation_for_calculation-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Measurement_methods_and_standards" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Measurement_methods_and_standards"> <div class="vector-toc-text"> <span class="vector-toc-numb">2.2</span> <span>Measurement methods and standards</span> </div> </a> <ul id="toc-Measurement_methods_and_standards-sublist" class="vector-toc-list"> </ul> </li> </ul> </li> <li id="toc-Above_the_water_table" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Above_the_water_table"> <div class="vector-toc-text"> <span class="vector-toc-numb">3</span> <span>Above the water table</span> </div> </a> <button aria-controls="toc-Above_the_water_table-sublist" class="cdx-button cdx-button--weight-quiet cdx-button--icon-only vector-toc-toggle"> <span class="vector-icon mw-ui-icon-wikimedia-expand"></span> <span>Toggle Above the water table subsection</span> </button> <ul id="toc-Above_the_water_table-sublist" class="vector-toc-list"> <li id="toc-Equation_for_calculation_2" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Equation_for_calculation_2"> <div class="vector-toc-text"> <span class="vector-toc-numb">3.1</span> <span>Equation for calculation</span> </div> </a> <ul id="toc-Equation_for_calculation_2-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Measurement_methods_and_standards_2" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Measurement_methods_and_standards_2"> <div class="vector-toc-text"> <span class="vector-toc-numb">3.2</span> <span>Measurement methods and standards</span> </div> </a> <ul id="toc-Measurement_methods_and_standards_2-sublist" class="vector-toc-list"> <li id="toc-Matric_pressure" class="vector-toc-list-item vector-toc-level-3"> <a class="vector-toc-link" href="#Matric_pressure"> <div class="vector-toc-text"> <span class="vector-toc-numb">3.2.1</span> <span>Matric pressure</span> </div> </a> <ul id="toc-Matric_pressure-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Pneumatic_pressure" class="vector-toc-list-item vector-toc-level-3"> <a class="vector-toc-link" href="#Pneumatic_pressure"> <div class="vector-toc-text"> <span class="vector-toc-numb">3.2.2</span> <span>Pneumatic pressure</span> </div> </a> <ul id="toc-Pneumatic_pressure-sublist" class="vector-toc-list"> </ul> </li> </ul> </li> </ul> </li> <li id="toc-See_also" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#See_also"> <div class="vector-toc-text"> <span class="vector-toc-numb">4</span> <span>See also</span> </div> </a> <ul id="toc-See_also-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-References" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#References"> <div class="vector-toc-text"> <span class="vector-toc-numb">5</span> <span>References</span> </div> </a> <ul id="toc-References-sublist" class="vector-toc-list"> </ul> </li> </ul> </div> </div> </nav> </div> </div> <div class="mw-content-container"> <main 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class="vector-unpinned-container"> </div> </div> </div> </nav> <h1 id="firstHeading" class="firstHeading mw-first-heading"><span class="mw-page-title-main">Pore water pressure</span></h1> <div id="p-lang-btn" class="vector-dropdown mw-portlet mw-portlet-lang" > <input type="checkbox" id="p-lang-btn-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-p-lang-btn" class="vector-dropdown-checkbox mw-interlanguage-selector" aria-label="Go to an article in another language. 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href="https://es.wikipedia.org/wiki/Presi%C3%B3n_de_poros_de_agua" title="Presión de poros de agua – Spanish" lang="es" hreflang="es" data-title="Presión de poros de agua" data-language-autonym="Español" data-language-local-name="Spanish" class="interlanguage-link-target"><span>Español</span></a></li><li class="interlanguage-link interwiki-kk mw-list-item"><a href="https://kk.wikipedia.org/wiki/%D0%9A%D0%B5%D1%83%D0%B5%D0%BA%D1%82%D1%96%D0%BA_%D2%9B%D1%8B%D1%81%D1%8B%D0%BC" title="Кеуектік қысым – Kazakh" lang="kk" hreflang="kk" data-title="Кеуектік қысым" data-language-autonym="Қазақша" data-language-local-name="Kazakh" class="interlanguage-link-target"><span>Қазақша</span></a></li><li class="interlanguage-link interwiki-nl mw-list-item"><a href="https://nl.wikipedia.org/wiki/Pori%C3%ABnwaterspanning" title="Poriënwaterspanning – Dutch" lang="nl" hreflang="nl" data-title="Poriënwaterspanning" data-language-autonym="Nederlands" data-language-local-name="Dutch" class="interlanguage-link-target"><span>Nederlands</span></a></li><li class="interlanguage-link interwiki-nn mw-list-item"><a href="https://nn.wikipedia.org/wiki/Poretrykk" title="Poretrykk – Norwegian Nynorsk" lang="nn" hreflang="nn" data-title="Poretrykk" data-language-autonym="Norsk nynorsk" data-language-local-name="Norwegian Nynorsk" class="interlanguage-link-target"><span>Norsk nynorsk</span></a></li><li class="interlanguage-link interwiki-pl mw-list-item"><a href="https://pl.wikipedia.org/wiki/Ci%C5%9Bnienie_porowe" title="Ciśnienie porowe – Polish" lang="pl" hreflang="pl" data-title="Ciśnienie porowe" data-language-autonym="Polski" data-language-local-name="Polish" class="interlanguage-link-target"><span>Polski</span></a></li><li class="interlanguage-link interwiki-ru mw-list-item"><a href="https://ru.wikipedia.org/wiki/%D0%9F%D0%BE%D1%80%D0%BE%D0%B2%D0%BE%D0%B5_%D0%B4%D0%B0%D0%B2%D0%BB%D0%B5%D0%BD%D0%B8%D0%B5_%D0%B2%D0%BE%D0%B4%D1%8B" title="Поровое давление воды – Russian" 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<div class="mw-indicators"> </div> <div id="siteSub" class="noprint">From Wikipedia, the free encyclopedia</div> </div> <div id="contentSub"><div id="mw-content-subtitle"></div></div> <div id="mw-content-text" class="mw-body-content"><div class="mw-content-ltr mw-parser-output" lang="en" dir="ltr"><div class="shortdescription nomobile noexcerpt noprint searchaux" style="display:none">Pressure of groundwater held within a soil or rock, in gaps between particles</div> <p><b>Pore water pressure</b> (sometimes abbreviated to <b>pwp</b>) refers to the <a href="/wiki/Pressure" title="Pressure">pressure</a> of <a href="/wiki/Groundwater" title="Groundwater">groundwater</a> held within a <a href="/wiki/Soil" title="Soil">soil</a> or <a href="/wiki/Rock_(geology)" title="Rock (geology)">rock</a>, in gaps between particles (<a href="/wiki/Soil_pore" class="mw-redirect" title="Soil pore">pores</a>). Pore water pressures below the <a href="/wiki/Phreatic" title="Phreatic">phreatic</a> level of the <a href="/wiki/Groundwater" title="Groundwater">groundwater</a> are measured with <a href="/wiki/Piezometer" class="mw-redirect" title="Piezometer">piezometers</a>. The vertical pore water pressure distribution in <a href="/wiki/Aquifer" title="Aquifer">aquifers</a> can generally be assumed to be close to <a href="/wiki/Hydrostatic_pressure" class="mw-redirect" title="Hydrostatic pressure">hydrostatic</a>. </p><p>In the <a href="/wiki/Vadose_zone" title="Vadose zone">unsaturated ("vadose") zone</a>, the pore pressure is determined by <a href="/wiki/Capillary_action" title="Capillary action">capillarity</a> and is also referred to as <a href="/wiki/Tension_(physics)" title="Tension (physics)">tension</a>, <a href="/wiki/Suction" title="Suction">suction</a>, or matric pressure. Pore water pressures under unsaturated conditions are measured with <a href="/wiki/Tensiometer_(soil_science)" title="Tensiometer (soil science)">tensiometers</a>, which operate by allowing the pore water to come into equilibrium with a reference pressure indicator through a permeable <a href="/wiki/Ceramic" title="Ceramic">ceramic</a> cup placed in contact with the soil. </p><p>Pore water pressure is vital in calculating the stress state in the ground <a href="/wiki/Soil_mechanics" title="Soil mechanics">soil mechanics</a>, from <a href="/wiki/Karl_von_Terzaghi" title="Karl von Terzaghi">Terzaghi</a>'s expression for the <a href="/wiki/Effective_stress" title="Effective stress">effective stress</a> of the soil. </p> <meta property="mw:PageProp/toc" /> <div class="mw-heading mw-heading2"><h2 id="General_principles">General principles</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Pore_water_pressure&action=edit&section=1" title="Edit section: General principles"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Pressure develops due to:<sup id="cite_ref-1" class="reference"><a href="#cite_note-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> </p> <ul><li><i>Water elevation difference</i>: water flowing from a higher elevation to a lower elevation and causing a velocity head, or with water flow, as exemplified in <a href="/wiki/Bernoulli%27s_principle" title="Bernoulli's principle">Bernoulli's energy equations</a>.</li> <li><i>Hydrostatic water pressure</i>: resulting from the weight of material above the point measured.</li> <li><i>Osmotic pressure</i>: inhomogeneous aggregation of <a href="/wiki/Ion" title="Ion">ion</a> concentrations, which causes a force in water particles as they attract by the molecular laws of attraction.</li> <li><i>Absorption pressure</i>: attraction of surrounding soil particles to one another by adsorbed water films.</li> <li><i>Matric suction</i>: the defining trait of unsaturated soil, this term corresponds to the pressure dry soil exerts on the surrounding material to equalise the moisture content in the overall block of soil and is defined as the difference between pore air pressure,<i><span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle (u_{a})}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mo stretchy="false">(</mo> <msub> <mi>u</mi> <mrow class="MJX-TeXAtom-ORD"> <mi>a</mi> </mrow> </msub> <mo stretchy="false">)</mo> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle (u_{a})}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/89357d3c471d8ff7f6e97e3e72858b8f3a58759d" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.838ex; width:4.241ex; height:2.843ex;" alt="{\displaystyle (u_{a})}"></span></i>, and pore water pressure, <i><span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle (u_{w})}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mo stretchy="false">(</mo> <msub> <mi>u</mi> <mrow class="MJX-TeXAtom-ORD"> <mi>w</mi> </mrow> </msub> <mo stretchy="false">)</mo> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle (u_{w})}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/981e1dba3f1613371dc82448f7cd7f249020f789" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.838ex; width:4.548ex; height:2.843ex;" alt="{\displaystyle (u_{w})}"></span></i>.<sup id="cite_ref-2" class="reference"><a href="#cite_note-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup></li></ul> <div class="mw-heading mw-heading2"><h2 id="Below_the_water_table">Below the water table</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Pore_water_pressure&action=edit&section=2" title="Edit section: Below the water table"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/File:Vibrating_wire_piezometer_from_USBR_6515-09_Fig._1.png" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/d/d1/Vibrating_wire_piezometer_from_USBR_6515-09_Fig._1.png/440px-Vibrating_wire_piezometer_from_USBR_6515-09_Fig._1.png" decoding="async" width="440" height="114" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/d/d1/Vibrating_wire_piezometer_from_USBR_6515-09_Fig._1.png/660px-Vibrating_wire_piezometer_from_USBR_6515-09_Fig._1.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/d/d1/Vibrating_wire_piezometer_from_USBR_6515-09_Fig._1.png/880px-Vibrating_wire_piezometer_from_USBR_6515-09_Fig._1.png 2x" data-file-width="1014" data-file-height="262" /></a><figcaption>A vibrating wire piezometer. The vibrating wire converts the fluid pressures into equivalent frequency signals that are then recorded.</figcaption></figure> <p>The buoyancy effects of water have a large impact on certain soil properties, such as the effective stress present at any point in a soil medium. Consider an arbitrary point five meters below the ground surface. In dry soil, particles at this point experience a total overhead stress equal to the depth underground (5 meters), multiplied by the specific weight of the soil. However, when the local <a href="/wiki/Water_table" title="Water table">water table</a> height is within said five meters, the total stress felt five meters below the surface is decreased by the product of the height of the water table in to the five meter area, and the specific weight of water, 9.81 kN/m^3. This parameter is called the effective stress of the soil, basically equal to the difference in a soil's total stress and pore water pressure. The pore water pressure is essential in differentiating a soil's total stress from its effective stress. A correct representation of stress in the soil is necessary for accurate field calculations in a variety of engineering trades.<sup id="cite_ref-3" class="reference"><a href="#cite_note-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading3"><h3 id="Equation_for_calculation">Equation for calculation</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Pore_water_pressure&action=edit&section=3" title="Edit section: Equation for calculation"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>When there is no flow, the pore pressure at depth, <i>h</i><sub>w</sub>, below the water surface is:<sup id="cite_ref-Bristol_4-0" class="reference"><a href="#cite_note-Bristol-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> </p> <dl><dd><span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle p_{s}=g_{w}h_{w}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <msub> <mi>p</mi> <mrow class="MJX-TeXAtom-ORD"> <mi>s</mi> </mrow> </msub> <mo>=</mo> <msub> <mi>g</mi> <mrow class="MJX-TeXAtom-ORD"> <mi>w</mi> </mrow> </msub> <msub> <mi>h</mi> <mrow class="MJX-TeXAtom-ORD"> <mi>w</mi> </mrow> </msub> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle p_{s}=g_{w}h_{w}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/de54fbac7221735f07f0000d59ea2216d2d36eec" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.671ex; margin-left: -0.089ex; width:10.627ex; height:2.509ex;" alt="{\displaystyle p_{s}=g_{w}h_{w}}"></span>,</dd></dl> <p>where: </p> <ul><li><i>p</i><sub>s</sub> is the saturated pore water pressure (kPa)</li> <li><i>g</i><sub>w</sub> is the unit weight of water (kN/m<sup>3</sup>),</li></ul> <dl><dd><dl><dd><span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle g_{w}=9.81kN/m^{3}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <msub> <mi>g</mi> <mrow class="MJX-TeXAtom-ORD"> <mi>w</mi> </mrow> </msub> <mo>=</mo> <mn>9.81</mn> <mi>k</mi> <mi>N</mi> <mrow class="MJX-TeXAtom-ORD"> <mo>/</mo> </mrow> <msup> <mi>m</mi> <mrow class="MJX-TeXAtom-ORD"> <mn>3</mn> </mrow> </msup> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle g_{w}=9.81kN/m^{3}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/d0fa156114baf313a4aa7d2b17755c3e8d641ae9" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.838ex; width:17.283ex; height:3.176ex;" alt="{\displaystyle g_{w}=9.81kN/m^{3}}"></span> <sup id="cite_ref-FE_5-0" class="reference"><a href="#cite_note-FE-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup></dd></dl></dd></dl> <ul><li><i>h</i><sub>w</sub> is the depth below the water table (m),</li></ul> <div class="mw-heading mw-heading3"><h3 id="Measurement_methods_and_standards">Measurement methods and standards</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Pore_water_pressure&action=edit&section=4" title="Edit section: Measurement methods and standards"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>The standard method for measuring pore water pressure below the water table employs a piezometer, which measures the height to which a column of the liquid rises against <a href="/wiki/Gravity" title="Gravity">gravity</a>; i.e., the static pressure (or <a href="/wiki/Piezometric_head" class="mw-redirect" title="Piezometric head">piezometric head</a>) of groundwater at a specific depth.<sup id="cite_ref-Ch_9_Measurement_of_Groundwater_Pressure_6-0" class="reference"><a href="#cite_note-Ch_9_Measurement_of_Groundwater_Pressure-6"><span class="cite-bracket">[</span>6<span class="cite-bracket">]</span></a></sup> Piezometers often employ electronic pressure <a href="/wiki/Transducer" title="Transducer">transducers</a> to provide data. The <a href="/wiki/United_States_Bureau_of_Reclamation" title="United States Bureau of Reclamation">United States Bureau of Reclamation</a> has a standard for monitoring water pressure in a rock mass with piezometers. It sites <a href="/wiki/ASTM_International" title="ASTM International">ASTM</a> D4750, "Standard Test Method for Determining Subsurface Liquid Levels in a Borehole or Monitoring Well (Observation Well)".<sup id="cite_ref-7" class="reference"><a href="#cite_note-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="Above_the_water_table">Above the water table</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Pore_water_pressure&action=edit&section=5" title="Edit section: Above the water table"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/File:Tensiometer.png" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/7/77/Tensiometer.png/170px-Tensiometer.png" decoding="async" width="170" height="315" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/7/77/Tensiometer.png 1.5x" data-file-width="230" data-file-height="426" /></a><figcaption>Electronic tensiometer probe: (1) porous cup; (2) water-filled tube; (3) sensor-head; (4) pressure sensor</figcaption></figure> <p>At any point above the <a href="/wiki/Water_table" title="Water table">water table</a>, in the vadose zone, the effective stress is approximately equal to the total stress, as proven by <a href="/wiki/Terzaghi%27s_principle" title="Terzaghi's principle">Terzaghi's principle</a>. Realistically, the effective stress is greater than the total stress, as the pore water pressure in these partially saturated soils is actually negative. This is primarily due to the surface tension of pore water in voids throughout the vadose zone causing a suction effect on surrounding particles, i.e. matric suction. This capillary action is the "upward movement of water through the vadose zone" (Coduto, 266).<sup id="cite_ref-Coduto2011_8-0" class="reference"><a href="#cite_note-Coduto2011-8"><span class="cite-bracket">[</span>8<span class="cite-bracket">]</span></a></sup> Increased water infiltration, such as that caused by heavy rainfall, brings about a reduction in matric suction, following the relationship described by the soil water characteristic curve (SWCC), resulting in a reduction of the soil's shear strength, and reduced slope stability.<sup id="cite_ref-9" class="reference"><a href="#cite_note-9"><span class="cite-bracket">[</span>9<span class="cite-bracket">]</span></a></sup> Capillary effects in soil are more complex than in free water due to the randomly connected void space and particle interference through which to flow; regardless, the height of this zone of capillary rise, where negative pore water pressure is generally peaks, can be closely approximated by a simple equation. The height of capillary rise is inversely proportional to the diameter of void space in contact with water. Therefore, the smaller the void space, the higher water will rise due to tension forces. <a href="/wiki/Sand" title="Sand">Sandy</a> soils consist of more coarse material with more room for voids, and therefore tend to have a much shallower capillary zone than do more cohesive soils, such as <a href="/wiki/Clay" title="Clay">clays</a> and <a href="/wiki/Silt" title="Silt">silts</a>.<sup id="cite_ref-Coduto2011_8-1" class="reference"><a href="#cite_note-Coduto2011-8"><span class="cite-bracket">[</span>8<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading3"><h3 id="Equation_for_calculation_2">Equation for calculation</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Pore_water_pressure&action=edit&section=6" title="Edit section: Equation for calculation"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>If the water table is at depth <i>d</i><sub>w</sub> in fine-grained soils, then the pore pressure at the ground surface is:<sup id="cite_ref-Bristol_4-1" class="reference"><a href="#cite_note-Bristol-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> </p> <dl><dd><span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle p_{g}=-g_{w}d_{w}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <msub> <mi>p</mi> <mrow class="MJX-TeXAtom-ORD"> <mi>g</mi> </mrow> </msub> <mo>=</mo> <mo>−</mo> <msub> <mi>g</mi> <mrow class="MJX-TeXAtom-ORD"> <mi>w</mi> </mrow> </msub> <msub> <mi>d</mi> <mrow class="MJX-TeXAtom-ORD"> <mi>w</mi> </mrow> </msub> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle p_{g}=-g_{w}d_{w}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/491a48ebaec8d085796a29d53d9ae4c15b663a3c" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -1.005ex; margin-left: -0.089ex; width:12.323ex; height:2.843ex;" alt="{\displaystyle p_{g}=-g_{w}d_{w}}"></span>,</dd></dl> <p>where: </p> <ul><li><i>p</i><sub>g</sub> is the unsaturated pore water pressure (Pa) at ground level,</li> <li><i>g</i><sub>w</sub> is the unit weight of water (kN/m<sup>3</sup>),</li></ul> <dl><dd><dl><dd><span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle g_{w}=9.81kN/m^{3}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <msub> <mi>g</mi> <mrow class="MJX-TeXAtom-ORD"> <mi>w</mi> </mrow> </msub> <mo>=</mo> <mn>9.81</mn> <mi>k</mi> <mi>N</mi> <mrow class="MJX-TeXAtom-ORD"> <mo>/</mo> </mrow> <msup> <mi>m</mi> <mrow class="MJX-TeXAtom-ORD"> <mn>3</mn> </mrow> </msup> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle g_{w}=9.81kN/m^{3}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/d0fa156114baf313a4aa7d2b17755c3e8d641ae9" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.838ex; width:17.283ex; height:3.176ex;" alt="{\displaystyle g_{w}=9.81kN/m^{3}}"></span></dd></dl></dd></dl> <ul><li><i>d</i><sub>w</sub> is the depth of the water table (m),</li></ul> <p>and the pore pressure at depth, <i>z</i>, below the surface is: </p> <dl><dd><span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle p_{u}=g_{w}(z-d_{w})}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <msub> <mi>p</mi> <mrow class="MJX-TeXAtom-ORD"> <mi>u</mi> </mrow> </msub> <mo>=</mo> <msub> <mi>g</mi> <mrow class="MJX-TeXAtom-ORD"> <mi>w</mi> </mrow> </msub> <mo stretchy="false">(</mo> <mi>z</mi> <mo>−</mo> <msub> <mi>d</mi> <mrow class="MJX-TeXAtom-ORD"> <mi>w</mi> </mrow> </msub> <mo stretchy="false">)</mo> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle p_{u}=g_{w}(z-d_{w})}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/e3c9afeab913a266867eef9fe52f1ccdb5876055" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.838ex; margin-left: -0.089ex; width:16.404ex; height:2.843ex;" alt="{\displaystyle p_{u}=g_{w}(z-d_{w})}"></span>,</dd></dl> <p>where: </p> <ul><li><i>p</i><sub>u</sub> is the unsaturated pore water pressure (Pa) at point, <i>z</i>, below ground level,</li> <li><i>z</i><sub>u</sub> is depth below ground level.</li></ul> <div class="mw-heading mw-heading3"><h3 id="Measurement_methods_and_standards_2">Measurement methods and standards</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Pore_water_pressure&action=edit&section=7" title="Edit section: Measurement methods and standards"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>A tensiometer is an instrument used to determine the matric water potential (<span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle \Psi _{m}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <msub> <mi mathvariant="normal">Ψ</mi> <mrow class="MJX-TeXAtom-ORD"> <mi>m</mi> </mrow> </msub> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle \Psi _{m}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/c5c9a9029e90af9e10505eb7fcd4cb7ece4eecdc" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.671ex; width:3.483ex; height:2.509ex;" alt="{\displaystyle \Psi _{m}}"></span>) (<a href="/wiki/Soil_moisture" title="Soil moisture">soil moisture</a> tension) in the vadose zone.<sup id="cite_ref-10" class="reference"><a href="#cite_note-10"><span class="cite-bracket">[</span>10<span class="cite-bracket">]</span></a></sup> An <a href="/wiki/ISO" class="mw-redirect" title="ISO">ISO</a> standard, "<a href="/wiki/Soil_quality" title="Soil quality">Soil quality</a> — Determination of pore water pressure — Tensiometer method", ISO 11276:1995, "describes methods for the determination of pore water pressure (point measurements) in unsaturated and saturated soil using tensiometers. Applicable for in situ measurements in the field and, e. g. soil cores, used in experimental examinations." It defines pore water pressure as "the sum of matric and pneumatic pressures".<sup id="cite_ref-11" class="reference"><a href="#cite_note-11"><span class="cite-bracket">[</span>11<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading4"><h4 id="Matric_pressure">Matric pressure</h4><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Pore_water_pressure&action=edit&section=8" title="Edit section: Matric pressure"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>The amount of work that must be done in order to transport reversibly and <a href="/wiki/Isothermally" class="mw-redirect" title="Isothermally">isothermally</a> an infinitesimal quantity of water, identical in composition to the soil water, from a pool at the elevation and the external gas pressure of the point under consideration, to the soil water at the point under consideration, divided by the volume of water transported.<sup id="cite_ref-BS_7755_1996;_Part_5.1_12-0" class="reference"><a href="#cite_note-BS_7755_1996;_Part_5.1-12"><span class="cite-bracket">[</span>12<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading4"><h4 id="Pneumatic_pressure">Pneumatic pressure</h4><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Pore_water_pressure&action=edit&section=9" title="Edit section: Pneumatic pressure"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>The amount of work that must be done in order to transport reversibly and isothermally an infinitesimal quantity of water, identical in composition to the soil water, from a pool at <a href="/wiki/Atmospheric_pressure" title="Atmospheric pressure">atmospheric pressure</a> and at the elevation of the point under consideration, to a similar pool at an external gas pressure of the point under consideration, divided by the volume of water transported.<sup id="cite_ref-BS_7755_1996;_Part_5.1_12-1" class="reference"><a href="#cite_note-BS_7755_1996;_Part_5.1-12"><span class="cite-bracket">[</span>12<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="See_also">See also</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Pore_water_pressure&action=edit&section=10" title="Edit section: See also"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a href="/wiki/Internal_erosion" title="Internal erosion">Internal erosion</a></li> <li><a href="/wiki/Frost_weathering" title="Frost weathering">Frost weathering</a></li> <li><a href="/wiki/Geotechnical_engineering" title="Geotechnical engineering">Geotechnical engineering</a></li> <li><a href="/wiki/Water_potential" title="Water potential">Water potential</a></li> <li><a href="/wiki/Well_engineering" title="Well engineering">Well engineering</a></li></ul> <div class="mw-heading mw-heading2"><h2 id="References">References</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Pore_water_pressure&action=edit&section=11" title="Edit section: References"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <style data-mw-deduplicate="TemplateStyles:r1239543626">.mw-parser-output .reflist{margin-bottom:0.5em;list-style-type:decimal}@media screen{.mw-parser-output .reflist{font-size:90%}}.mw-parser-output .reflist .references{font-size:100%;margin-bottom:0;list-style-type:inherit}.mw-parser-output .reflist-columns-2{column-width:30em}.mw-parser-output .reflist-columns-3{column-width:25em}.mw-parser-output .reflist-columns{margin-top:0.3em}.mw-parser-output .reflist-columns ol{margin-top:0}.mw-parser-output .reflist-columns li{page-break-inside:avoid;break-inside:avoid-column}.mw-parser-output .reflist-upper-alpha{list-style-type:upper-alpha}.mw-parser-output .reflist-upper-roman{list-style-type:upper-roman}.mw-parser-output .reflist-lower-alpha{list-style-type:lower-alpha}.mw-parser-output .reflist-lower-greek{list-style-type:lower-greek}.mw-parser-output .reflist-lower-roman{list-style-type:lower-roman}</style><div class="reflist reflist-columns references-column-width reflist-columns-2"> <ol class="references"> <li id="cite_note-1"><span class="mw-cite-backlink"><b><a href="#cite_ref-1">^</a></b></span> <span class="reference-text"><style data-mw-deduplicate="TemplateStyles:r1238218222">.mw-parser-output cite.citation{font-style:inherit;word-wrap:break-word}.mw-parser-output .citation q{quotes:"\"""\"""'""'"}.mw-parser-output .citation:target{background-color:rgba(0,127,255,0.133)}.mw-parser-output .id-lock-free.id-lock-free a{background:url("//upload.wikimedia.org/wikipedia/commons/6/65/Lock-green.svg")right 0.1em center/9px no-repeat}.mw-parser-output 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style="padding:3px"><table class="nowraplinks hlist mw-collapsible autocollapse navbox-inner" style="border-spacing:0;background:transparent;color:inherit"><tbody><tr><th scope="col" class="navbox-title" colspan="3"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1129693374"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1239400231"><div class="navbar plainlinks hlist navbar-mini"><ul><li class="nv-view"><a href="/wiki/Template:Soil_science_topics" title="Template:Soil science topics"><abbr title="View this template">v</abbr></a></li><li class="nv-talk"><a href="/wiki/Template_talk:Soil_science_topics" title="Template talk:Soil science topics"><abbr title="Discuss this template">t</abbr></a></li><li class="nv-edit"><a href="/wiki/Special:EditPage/Template:Soil_science_topics" title="Special:EditPage/Template:Soil science topics"><abbr title="Edit this template">e</abbr></a></li></ul></div><div id="Soil_science" style="font-size:114%;margin:0 4em"><a href="/wiki/Soil_science" title="Soil science">Soil science</a></div></th></tr><tr><td class="navbox-abovebelow" colspan="3"><div> <ul><li><a href="/wiki/History_of_soil_science" title="History of soil science">History</a></li> <li><a href="/wiki/Index_of_soil-related_articles" title="Index of soil-related articles">Index</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Main fields</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Pedology" title="Pedology">Pedology</a></li> <li><a href="/wiki/Edaphology" title="Edaphology">Edaphology</a></li> <li><a href="/wiki/Soil_biology" title="Soil biology">Soil biology</a></li> <li><a href="/wiki/Soil_microbiology" title="Soil microbiology">Soil microbiology</a></li> <li><a href="/wiki/Soil_zoology" title="Soil zoology">Soil zoology</a></li> <li><a href="/wiki/Soil_ecology" title="Soil ecology">Soil ecology</a></li> <li><a href="/wiki/Soil_physics" title="Soil physics">Soil physics</a></li> <li><a href="/wiki/Soil_mechanics" title="Soil mechanics">Soil mechanics</a></li> <li><a href="/wiki/Soil_chemistry" title="Soil chemistry">Soil chemistry</a></li> <li><a href="/wiki/Environmental_soil_science" title="Environmental soil science">Environmental soil science</a></li> <li><a href="/wiki/Agricultural_soil_science" title="Agricultural soil science">Agricultural soil science</a></li></ul> </div></td><td class="noviewer navbox-image" rowspan="8" style="width:1px;padding:0 0 0 2px"><div><span class="mw-image-border" typeof="mw:File"><a href="/wiki/File:Soil_profile.svg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/b/b8/Soil_profile.svg/110px-Soil_profile.svg.png" decoding="async" width="110" height="159" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/b/b8/Soil_profile.svg/165px-Soil_profile.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/b/b8/Soil_profile.svg/220px-Soil_profile.svg.png 2x" data-file-width="456" data-file-height="660" /></a></span></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Soil topics</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Soil" title="Soil">Soil</a></li> <li><a href="/wiki/Pedosphere" title="Pedosphere">Pedosphere</a> <ul><li><a href="/wiki/Soil_morphology" title="Soil morphology">Soil morphology</a></li> <li><a href="/wiki/Pedodiversity" title="Pedodiversity">Pedodiversity</a></li> <li><a href="/wiki/Soil_formation" title="Soil formation">Soil formation</a></li></ul></li> <li><a href="/wiki/Soil_erosion" title="Soil erosion">Soil erosion</a></li> <li><a href="/wiki/Soil_contamination" title="Soil contamination">Soil contamination</a></li> <li><a href="/wiki/Soil_retrogression_and_degradation" title="Soil retrogression and degradation">Soil retrogression and degradation</a></li> <li><a href="/wiki/Soil_compaction" title="Soil compaction">Soil compaction</a> <ul><li><a href="/wiki/Soil_compaction_(agriculture)" title="Soil compaction (agriculture)">Soil compaction (agriculture)</a></li></ul></li> <li><a href="/wiki/Soil_sealing" title="Soil sealing">Soil sealing</a></li> <li><a href="/wiki/Soil_salinity" title="Soil salinity">Soil salinity</a> <ul><li><a href="/wiki/Alkali_soil" title="Alkali soil">Alkali soil</a></li></ul></li> <li><a href="/wiki/Soil_pH" title="Soil pH">Soil pH</a> <ul><li><a href="/wiki/Soil_acidification" title="Soil acidification">Soil acidification</a></li></ul></li> <li><a href="/wiki/Soil_health" title="Soil health">Soil health</a></li> <li><a href="/wiki/Soil_life" class="mw-redirect" title="Soil life">Soil life</a></li> <li><a href="/wiki/Soil_biodiversity" title="Soil biodiversity">Soil biodiversity</a></li> <li><a href="/wiki/Soil_quality" title="Soil quality">Soil quality</a></li> <li><a href="/wiki/Soil_value" title="Soil value">Soil value</a></li> <li><a href="/wiki/Soil_fertility" title="Soil fertility">Soil fertility</a></li> <li><a href="/wiki/Soil_resilience" title="Soil resilience">Soil resilience</a></li> <li><a href="/wiki/Soil_color" title="Soil color">Soil color</a></li> <li><a href="/wiki/Soil_texture" title="Soil texture">Soil texture</a></li> <li><a href="/wiki/Soil_structure" title="Soil structure">Soil structure</a> <ul><li><a href="/wiki/Pore_space_in_soil" title="Pore space in soil">Pore space in soil</a></li> <li><a class="mw-selflink selflink">Pore water pressure</a></li></ul></li> <li><a href="/wiki/Soil_crust" title="Soil crust">Soil crust</a></li> <li><a href="/wiki/Soil_horizon" title="Soil horizon">Soil horizon</a></li> <li><a href="/wiki/Soil_biomantle" title="Soil biomantle">Soil biomantle</a></li> <li><a href="/wiki/Soil_carbon" title="Soil carbon">Soil carbon</a></li> <li><a href="/wiki/Soil_gas" title="Soil gas">Soil gas</a> <ul><li><a href="/wiki/Soil_respiration" title="Soil respiration">Soil respiration</a></li></ul></li> <li><a href="/wiki/Soil_organic_matter" title="Soil organic matter">Soil organic matter</a></li> <li><a href="/wiki/Soil_moisture" title="Soil moisture">Soil moisture</a> <ul><li><a href="/wiki/Soil_water_(retention)" title="Soil water (retention)">Soil water (retention)</a></li></ul></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Soil_type" title="Soil type">Soil type</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"><div class="navbox-styles"></div><div role="navigation" class="navbox" aria-labelledby="Soil_classification" style="padding:3px"><table class="nowraplinks mw-collapsible autocollapse navbox-inner" style="border-spacing:0;background:transparent;color:inherit"><tbody><tr><th scope="col" class="navbox-title" colspan="2"><div class="navbar plainlinks hlist navbar-mini"><ul><li class="nv-view"><a href="/wiki/Template:Soil_type" title="Template:Soil type"><abbr title="View this template">v</abbr></a></li><li class="nv-talk"><a href="/wiki/Template_talk:Soil_type" title="Template talk:Soil type"><abbr title="Discuss this template">t</abbr></a></li><li class="nv-edit"><a href="/wiki/Special:EditPage/Template:Soil_type" title="Special:EditPage/Template:Soil type"><abbr title="Edit this template">e</abbr></a></li></ul></div><div id="Soil_classification" style="font-size:114%;margin:0 4em"><a href="/wiki/Soil_classification" title="Soil classification">Soil classification</a></div></th></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/World_Reference_Base_for_Soil_Resources" title="World Reference Base for Soil Resources">World Reference Base<br /> for Soil Resources</a> (1998–)</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Acrisol" title="Acrisol">Acrisols</a></li> <li><a href="/wiki/Alisols" class="mw-redirect" title="Alisols">Alisols</a></li> <li><a href="/wiki/Andosol" title="Andosol">Andosols</a></li> <li><a href="/wiki/Anthrosol" title="Anthrosol">Anthrosols</a></li> <li><a href="/wiki/Psamment" title="Psamment">Arenosols</a></li> <li><a href="/wiki/Calcisol" title="Calcisol">Calcisols</a></li> <li><a href="/wiki/Cambisol" title="Cambisol">Cambisols</a></li> <li><a href="/wiki/Chernozem" title="Chernozem">Chernozem</a></li> <li><a href="/wiki/Cryosols" class="mw-redirect" title="Cryosols">Cryosols</a></li> <li><a href="/wiki/Durisol" title="Durisol">Durisols</a></li> <li><a href="/wiki/Ferralsols" class="mw-redirect" title="Ferralsols">Ferralsols</a></li> <li><a href="/wiki/Fluvisol" title="Fluvisol">Fluvisols</a></li> <li><a href="/wiki/Gleysol" title="Gleysol">Gleysols</a></li> <li><a href="/wiki/Gypsisols" class="mw-redirect" title="Gypsisols">Gypsisols</a></li> <li><a href="/wiki/Histosol" title="Histosol">Histosol</a></li> <li><a href="/wiki/Kastanozem" title="Kastanozem">Kastanozems</a></li> <li><a href="/wiki/Leptosol" title="Leptosol">Leptosols</a></li> <li><a href="/wiki/Lixisol" title="Lixisol">Lixisols</a></li> <li><a href="/wiki/Luvisol" title="Luvisol">Luvisols</a></li> <li><a href="/wiki/Nitisol" title="Nitisol">Nitisols</a></li> <li><a href="/wiki/Phaeozem" title="Phaeozem">Phaeozems</a></li> <li><a href="/wiki/Planosol" title="Planosol">Planosols</a></li> <li><a href="/wiki/Plinthosol" title="Plinthosol">Plinthosols</a></li> <li><a href="/wiki/Podzol" title="Podzol">Podzols</a></li> <li><a href="/wiki/Regosol" title="Regosol">Regosols</a></li> <li><a href="/wiki/Retisol" title="Retisol">Retisols</a></li> <li><a href="/wiki/Solonchak" title="Solonchak">Solonchaks</a></li> <li><a href="/wiki/Solonetz" title="Solonetz">Solonetz</a></li> <li><a href="/wiki/Stagnosol" title="Stagnosol">Stagnosol</a></li> <li><a href="/wiki/Technosol" title="Technosol">Technosols</a></li> <li><a href="/wiki/Umbrisol" title="Umbrisol">Umbrisols</a></li> <li><a href="/wiki/Vertisol" title="Vertisol">Vertisols</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/USDA_soil_taxonomy" title="USDA soil taxonomy">USDA soil taxonomy</a></th><td class="navbox-list-with-group navbox-list navbox-even hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Alfisol" title="Alfisol">Alfisols</a></li> <li><a href="/wiki/Andisol" title="Andisol">Andisols</a></li> <li><a href="/wiki/Aridisol" title="Aridisol">Aridisols</a></li> <li><a href="/wiki/Entisol" title="Entisol">Entisols</a></li> <li><a href="/wiki/Gelisol" title="Gelisol">Gelisols</a></li> <li><a href="/wiki/Histosol" title="Histosol">Histosols</a></li> <li><a href="/wiki/Inceptisol" title="Inceptisol">Inceptisols</a></li> <li><a href="/wiki/Mollisol" title="Mollisol">Mollisols</a></li> <li><a href="/wiki/Oxisol" title="Oxisol">Oxisols</a></li> <li><a href="/wiki/Podzol" title="Podzol">Spodosols</a></li> <li><a href="/wiki/Ultisol" title="Ultisol">Ultisols</a></li> <li><a href="/wiki/Vertisol" title="Vertisol">Vertisols</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Other systems</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/FAO_soil_classification" title="FAO soil classification">FAO soil classification</a> (1974–1998)</li> <li><a href="/wiki/Unified_Soil_Classification_System" title="Unified Soil Classification System">Unified Soil Classification System</a></li> <li><a href="/wiki/AASHTO_Soil_Classification_System" title="AASHTO Soil Classification System">AASHTO Soil Classification System</a></li> <li><a href="/wiki/R%C3%A9f%C3%A9rentiel_p%C3%A9dologique" title="Référentiel pédologique">Référentiel pédologique</a> (French classification system)</li> <li><a href="/wiki/Canadian_system_of_soil_classification" title="Canadian system of soil classification">Canadian system of soil classification</a></li> <li><a href="/wiki/Australian_Soil_Classification" title="Australian Soil Classification">Australian Soil Classification</a></li> <li><a href="/wiki/Polish_Soil_Classification" title="Polish Soil Classification">Polish Soil Classification</a></li> <li><a href="/wiki/1938_USDA_soil_taxonomy" title="1938 USDA soil taxonomy">1938 USDA soil taxonomy</a></li> <li><a href="/wiki/List_of_U.S._state_soils" title="List of U.S. state soils">List of U.S. state soils</a></li> <li><a href="/wiki/List_of_vineyard_soil_types" title="List of vineyard soil types">List of vineyard soil types</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Non-systematic soil types</th><td class="navbox-list-with-group navbox-list navbox-even hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Sand" title="Sand">Sand</a></li> <li><a href="/wiki/Silt" title="Silt">Silt</a></li> <li><a href="/wiki/Clay" title="Clay">Clay</a></li> <li><a href="/wiki/Loam" title="Loam">Loam</a></li> <li><a href="/wiki/Topsoil" title="Topsoil">Topsoil</a></li> <li><a href="/wiki/Subsoil" title="Subsoil">Subsoil</a></li> <li><a href="/wiki/Soil_crust" title="Soil crust">Soil crust</a></li> <li><a href="/wiki/Claypan" title="Claypan">Claypan</a></li> <li><a href="/wiki/Hardpan" title="Hardpan">Hardpan</a></li> <li><a href="/wiki/Gypcrust" title="Gypcrust">Gypcrust</a></li> <li><a href="/wiki/Caliche" title="Caliche">Caliche</a></li> <li><a href="/wiki/Parent_material" title="Parent material">Parent material</a></li> <li><a href="/wiki/Pedosphere" title="Pedosphere">Pedosphere</a></li> <li><a href="/wiki/Laimosphere" title="Laimosphere">Laimosphere</a></li> <li><a href="/wiki/Rhizosphere" title="Rhizosphere">Rhizosphere</a></li> <li><a href="/wiki/Bulk_soil" title="Bulk soil">Bulk soil</a></li> <li><a href="/wiki/Alkali_soil" title="Alkali soil">Alkali soil</a></li> <li><a href="/wiki/Bay_mud" title="Bay mud">Bay mud</a></li> <li><a href="/wiki/Blue_goo" title="Blue goo">Blue goo</a></li> <li><a href="/wiki/Brickearth" title="Brickearth">Brickearth</a></li> <li><a href="/wiki/Brown_earth" title="Brown earth">Brown earth</a></li> <li><a href="/wiki/Calcareous_grassland" title="Calcareous grassland">Calcareous grassland</a></li> <li><a href="/wiki/Dark_earth" title="Dark earth">Dark earth</a></li> <li><a href="/wiki/Dry_quicksand" title="Dry quicksand">Dry quicksand</a></li> <li><a href="/wiki/Duplex_soil" title="Duplex soil">Duplex soil</a></li> <li><a href="/wiki/Eluvium" title="Eluvium">Eluvium</a></li> <li><a href="/wiki/Expansive_clay" title="Expansive clay">Expansive clay</a></li> <li><a href="/wiki/Fill_dirt" title="Fill dirt">Fill dirt</a></li> <li><a href="/wiki/Fuller%27s_earth" title="Fuller's earth">Fuller's earth</a></li> <li><a href="/wiki/Hydrophobic_soil" title="Hydrophobic soil">Hydrophobic soil</a></li> <li><a href="/wiki/Loess" title="Loess">Loess</a></li> <li><a href="/wiki/Lunar_soil" class="mw-redirect" title="Lunar soil">Lunar soil</a></li> <li><a href="/wiki/Martian_soil" class="mw-redirect" title="Martian soil">Martian soil</a></li> <li><a href="/wiki/Mud" title="Mud">Mud</a></li> <li><a href="/wiki/Muskeg" title="Muskeg">Muskeg</a></li> <li><a href="/wiki/Paleosol" title="Paleosol">Paleosol</a></li> <li><a href="/wiki/Peat" title="Peat">Peat</a></li> <li><a href="/wiki/Prime_farmland" title="Prime farmland">Prime farmland</a></li> <li><a href="/wiki/Quicksand" title="Quicksand">Quicksand</a></li> <li><a href="/wiki/Serpentine_soil" title="Serpentine soil">Serpentine soil</a></li> <li><a href="/wiki/Spodic_soil" class="mw-redirect" title="Spodic soil">Spodic soil</a></li> <li><a href="/wiki/Stagnogley" title="Stagnogley">Stagnogley</a></li> <li><a href="/wiki/Subaqueous_soil" title="Subaqueous soil">Subaqueous soil</a></li> <li><a href="/wiki/Takir_(soil)" title="Takir (soil)">Takir</a></li> <li><a href="/wiki/Terra_preta" title="Terra preta">Terra preta</a></li> <li><a href="/wiki/Terra_rossa_(soil)" title="Terra rossa (soil)">Terra rossa</a></li> <li><a href="/wiki/Tropical_peat" title="Tropical peat">Tropical peat</a></li> <li><a href="/wiki/Yedoma" title="Yedoma">Yedoma</a></li></ul> </div></td></tr><tr><td class="navbox-abovebelow" colspan="2"><div><span class="noviewer" typeof="mw:File"><span title="Category"><img alt="" src="//upload.wikimedia.org/wikipedia/en/thumb/9/96/Symbol_category_class.svg/16px-Symbol_category_class.svg.png" decoding="async" width="16" height="16" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/en/thumb/9/96/Symbol_category_class.svg/23px-Symbol_category_class.svg.png 1.5x, //upload.wikimedia.org/wikipedia/en/thumb/9/96/Symbol_category_class.svg/31px-Symbol_category_class.svg.png 2x" data-file-width="180" data-file-height="185" /></span></span> <a href="/wiki/Category:Types_of_soil" title="Category:Types of soil">Types of soil</a></div></td></tr></tbody></table></div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Applications</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Soil_conservation" title="Soil conservation">Soil conservation</a></li> <li><a href="/wiki/Soil_management" title="Soil management">Soil management</a></li> <li><a href="/wiki/Soil_guideline_value" title="Soil guideline value">Soil guideline value</a></li> <li><a href="/wiki/Soil_survey" title="Soil survey">Soil survey</a></li> <li><a href="/wiki/Soil_test" title="Soil test">Soil test</a></li> <li><a href="/wiki/Soil_governance" title="Soil governance">Soil governance</a></li> <li><a href="/wiki/Soil_value" title="Soil value">Soil value</a></li> <li><a href="/wiki/Soil_salinity_control" title="Soil salinity control">Soil salinity control</a></li> <li><a href="/wiki/Erosion_control" title="Erosion control">Erosion control</a></li> <li><a href="/wiki/Agroecology" title="Agroecology">Agroecology</a></li> <li><a href="/wiki/Liming_(soil)" title="Liming (soil)">Liming (soil)</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Related fields</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Geology" title="Geology">Geology</a></li> <li><a href="/wiki/Geochemistry" title="Geochemistry">Geochemistry</a></li> <li><a href="/wiki/Petrology" title="Petrology">Petrology</a></li> <li><a href="/wiki/Geomorphology" title="Geomorphology">Geomorphology</a></li> <li><a href="/wiki/Geotechnical_engineering" title="Geotechnical engineering">Geotechnical engineering</a></li> <li><a href="/wiki/Hydrology" title="Hydrology">Hydrology</a></li> <li><a href="/wiki/Hydrogeology" title="Hydrogeology">Hydrogeology</a></li> <li><a href="/wiki/Biogeography" title="Biogeography">Biogeography</a></li> <li><a href="/wiki/Earth_materials" title="Earth materials">Earth materials</a></li> <li><a href="/wiki/Archaeology" title="Archaeology">Archaeology</a></li> <li><a href="/wiki/Agricultural_science" title="Agricultural science">Agricultural science</a> <ul><li><a href="/wiki/Agrology" class="mw-redirect" title="Agrology">Agrology</a></li></ul></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Societies, Initiatives</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Australian_Society_of_Soil_Science_Incorporated" title="Australian Society of Soil Science Incorporated">Australian Society of Soil Science Incorporated</a></li> <li><a href="/wiki/Canadian_Society_of_Soil_Science" title="Canadian Society of Soil Science">Canadian Society of Soil Science</a></li> <li><a href="/wiki/Central_Soil_Salinity_Research_Institute" title="Central Soil Salinity Research Institute">Central Soil Salinity Research Institute</a> (India)</li> <li><a href="/wiki/German_Soil_Science_Society" title="German Soil Science Society">German Soil Science Society</a></li> <li><a href="/wiki/Indian_Institute_of_Soil_Science" title="Indian Institute of Soil Science">Indian Institute of Soil Science</a></li> <li><a href="/wiki/International_Union_of_Soil_Sciences" title="International Union of Soil Sciences">International Union of Soil Sciences</a></li> <li><a href="/wiki/International_Year_of_Soil" title="International Year of Soil">International Year of Soil</a></li> <li><a href="/wiki/National_Society_of_Consulting_Soil_Scientists" title="National Society of Consulting Soil Scientists">National Society of Consulting Soil Scientists</a> (US)</li> <li><a href="/wiki/OPAL_Soil_Centre" title="OPAL Soil Centre">OPAL Soil Centre</a> (UK)</li> <li><a href="/wiki/Soil_Science_Society_of_Poland" title="Soil Science Society of Poland">Soil Science Society of Poland</a></li> <li><a href="/wiki/Soil_and_Water_Conservation_Society" title="Soil and Water Conservation Society">Soil and Water Conservation Society</a> (US)</li> <li><a href="/wiki/Soil_Science_Society_of_America" title="Soil Science Society of America">Soil Science Society of America</a></li> <li><a href="/wiki/World_Congress_of_Soil_Science" title="World Congress of Soil Science">World Congress of Soil Science</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Scientific journals</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><i><a href="/wiki/Acta_Agriculturae_Scandinavica_B" title="Acta Agriculturae Scandinavica B">Acta Agriculturae Scandinavica B</a></i></li> <li><i><a href="/wiki/Journal_of_Soil_and_Water_Conservation" title="Journal of Soil and Water Conservation">Journal of Soil and Water Conservation</a></i></li> <li><i><a href="/wiki/Plant_and_Soil" title="Plant and Soil">Plant and Soil</a></i></li> <li><i><a href="/wiki/Pochvovedenie" title="Pochvovedenie">Pochvovedenie</a></i></li> <li><i><a href="/wiki/Soil_Research" title="Soil Research">Soil Research</a></i></li> <li><i><a href="/wiki/Soil_Science_Society_of_America_Journal" title="Soil Science Society of America Journal">Soil Science Society of America Journal</a></i></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">See also</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Land_use" title="Land use">Land use</a></li> <li><a href="/wiki/Land_conversion" class="mw-redirect" title="Land conversion">Land conversion</a></li> <li><a href="/wiki/Land_management" title="Land management">Land management</a></li> <li><a href="/wiki/Vegetation" title="Vegetation">Vegetation</a></li> <li><a href="/wiki/Infiltration_(hydrology)" title="Infiltration (hydrology)">Infiltration (hydrology)</a></li> <li><a href="/wiki/Groundwater" title="Groundwater">Groundwater</a></li> <li><a href="/wiki/Crust_(geology)" title="Crust (geology)">Crust (geology)</a></li> <li><a href="/wiki/Impervious_surface" title="Impervious surface">Impervious surface</a>/<a href="/wiki/Surface_runoff" title="Surface runoff">Surface runoff</a></li> <li><a href="/wiki/Petrichor" title="Petrichor">Petrichor</a></li></ul> </div></td></tr><tr><td class="navbox-abovebelow" colspan="3"><div> <ul><li><span class="noviewer" typeof="mw:File"><span title="Project page"><img alt="" src="//upload.wikimedia.org/wikipedia/en/thumb/7/72/Symbol_project_class.svg/16px-Symbol_project_class.svg.png" decoding="async" width="16" height="16" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/en/thumb/7/72/Symbol_project_class.svg/23px-Symbol_project_class.svg.png 1.5x, //upload.wikimedia.org/wikipedia/en/thumb/7/72/Symbol_project_class.svg/31px-Symbol_project_class.svg.png 2x" data-file-width="180" data-file-height="185" /></span></span> <a href="/wiki/Wikipedia:WikiProject_Soil" title="Wikipedia:WikiProject Soil">Wikipedia:WikiProject Soil</a></li> <li> <span class="noviewer" typeof="mw:File"><span title="Category"><img alt="" src="//upload.wikimedia.org/wikipedia/en/thumb/9/96/Symbol_category_class.svg/16px-Symbol_category_class.svg.png" decoding="async" width="16" height="16" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/en/thumb/9/96/Symbol_category_class.svg/23px-Symbol_category_class.svg.png 1.5x, //upload.wikimedia.org/wikipedia/en/thumb/9/96/Symbol_category_class.svg/31px-Symbol_category_class.svg.png 2x" data-file-width="180" data-file-height="185" /></span></span> <a href="/wiki/Category:Soil" title="Category:Soil">Category soil</a></li> <li>  <a href="/wiki/Category:Soil_science" title="Category:Soil science">Category soil science</a></li> <li><span class="noviewer" typeof="mw:File"><span title="List-Class article"><img alt="" src="//upload.wikimedia.org/wikipedia/en/thumb/d/db/Symbol_list_class.svg/16px-Symbol_list_class.svg.png" decoding="async" width="16" height="16" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/en/thumb/d/db/Symbol_list_class.svg/23px-Symbol_list_class.svg.png 1.5x, //upload.wikimedia.org/wikipedia/en/thumb/d/db/Symbol_list_class.svg/31px-Symbol_list_class.svg.png 2x" data-file-width="180" data-file-height="185" /></span></span> <a href="/wiki/List_of_soil_scientists" title="List of soil scientists">List of soil scientists</a></li></ul> </div></td></tr></tbody></table></div> <div class="navbox-styles"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1129693374"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1236075235"></div><div role="navigation" class="navbox" aria-labelledby="Geotechnical_engineering" style="padding:3px"><table class="nowraplinks mw-collapsible autocollapse navbox-inner" style="border-spacing:0;background:transparent;color:inherit"><tbody><tr><th scope="col" class="navbox-title" colspan="2"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1129693374"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1239400231"><div class="navbar plainlinks hlist navbar-mini"><ul><li class="nv-view"><a href="/wiki/Template:Geotechnical_engineering" title="Template:Geotechnical engineering"><abbr title="View this template">v</abbr></a></li><li class="nv-talk"><a href="/wiki/Template_talk:Geotechnical_engineering" title="Template talk:Geotechnical engineering"><abbr title="Discuss this template">t</abbr></a></li><li class="nv-edit"><a href="/wiki/Special:EditPage/Template:Geotechnical_engineering" title="Special:EditPage/Template:Geotechnical engineering"><abbr title="Edit this template">e</abbr></a></li></ul></div><div id="Geotechnical_engineering" style="font-size:114%;margin:0 4em"><a href="/wiki/Geotechnical_engineering" title="Geotechnical engineering">Geotechnical engineering</a></div></th></tr><tr><td class="navbox-abovebelow" colspan="2"><div><a href="/wiki/Offshore_geotechnical_engineering" title="Offshore geotechnical engineering">Offshore geotechnical engineering</a></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Geotechnical_investigation" title="Geotechnical investigation">Investigation</a> <br />and<br />instrumentation</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:10.0em;font-weight: normal;">Field (<i>in situ</i>)</th><td class="navbox-list-with-group navbox-list navbox-odd" style="padding:0"><div style="padding:0 0.25em"><div class="div-col" style="column-width: 33em;"> <ul><li><span class="noviewer" typeof="mw:File"><a href="/wiki/File:Core_sample.svg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/5/5e/Core_sample.svg/20px-Core_sample.svg.png" decoding="async" width="20" height="20" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/5/5e/Core_sample.svg/30px-Core_sample.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/5/5e/Core_sample.svg/40px-Core_sample.svg.png 2x" data-file-width="512" data-file-height="512" /></a></span> <a href="/wiki/Core_drill" title="Core drill">Core drill</a></li></ul> <ul><li><span class="noviewer" typeof="mw:File"><a href="/wiki/File:Cone_penetration_test.svg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/2/28/Cone_penetration_test.svg/20px-Cone_penetration_test.svg.png" decoding="async" width="20" height="20" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/2/28/Cone_penetration_test.svg/30px-Cone_penetration_test.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/2/28/Cone_penetration_test.svg/40px-Cone_penetration_test.svg.png 2x" data-file-width="512" data-file-height="512" /></a></span> <a href="/wiki/Cone_penetration_test" title="Cone penetration test">Cone penetration test</a></li></ul> <ul><li><span class="noviewer" typeof="mw:File"><a href="/wiki/File:Geo-electrical_sounding.svg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/1/10/Geo-electrical_sounding.svg/20px-Geo-electrical_sounding.svg.png" decoding="async" width="20" height="20" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/1/10/Geo-electrical_sounding.svg/30px-Geo-electrical_sounding.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/1/10/Geo-electrical_sounding.svg/40px-Geo-electrical_sounding.svg.png 2x" data-file-width="512" data-file-height="512" /></a></span> <a href="/w/index.php?title=Geo-electrical_sounding&action=edit&redlink=1" class="new" title="Geo-electrical sounding (page does not exist)">Geo-electrical sounding</a></li></ul> <ul><li><span class="noviewer" typeof="mw:File"><a href="/wiki/File:In_situ_permeameter_test.svg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/7/7b/In_situ_permeameter_test.svg/20px-In_situ_permeameter_test.svg.png" decoding="async" width="20" height="20" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/7/7b/In_situ_permeameter_test.svg/30px-In_situ_permeameter_test.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/7/7b/In_situ_permeameter_test.svg/40px-In_situ_permeameter_test.svg.png 2x" data-file-width="512" data-file-height="512" /></a></span> <a href="/wiki/Permeability_(Earth_sciences)" class="mw-redirect" title="Permeability (Earth sciences)">Permeability test</a></li></ul> <ul><li><span class="noviewer" typeof="mw:File"><a href="/wiki/File:Load_test.svg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/a/a2/Load_test.svg/20px-Load_test.svg.png" decoding="async" width="20" height="20" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/a/a2/Load_test.svg/30px-Load_test.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/a/a2/Load_test.svg/40px-Load_test.svg.png 2x" data-file-width="512" data-file-height="512" /></a></span> <a href="/wiki/Load_test" class="mw-redirect" title="Load test">Load test</a> <ul><li><a href="/wiki/Static_load_testing" title="Static load testing">Static</a></li> <li><a href="/wiki/Dynamic_load_testing" title="Dynamic load testing">Dynamic</a></li> <li><a href="/wiki/Statnamic_load_test" title="Statnamic load test">Statnamic</a></li></ul></li></ul> <ul><li><span class="noviewer" typeof="mw:File"><a href="/wiki/File:Pore_pressure_measurement.svg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/f/fe/Pore_pressure_measurement.svg/20px-Pore_pressure_measurement.svg.png" decoding="async" width="20" height="20" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/f/fe/Pore_pressure_measurement.svg/30px-Pore_pressure_measurement.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/f/fe/Pore_pressure_measurement.svg/40px-Pore_pressure_measurement.svg.png 2x" data-file-width="512" data-file-height="512" /></a></span> Pore pressure measurement <ul><li><a href="/wiki/Piezometer" class="mw-redirect" title="Piezometer">Piezometer</a></li> <li><a href="/wiki/Well#Classification" title="Well">Well</a></li></ul></li></ul> <ul><li><span class="noviewer" typeof="mw:File"><a href="/wiki/File:Ram_sounding.svg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/5/5d/Ram_sounding.svg/20px-Ram_sounding.svg.png" decoding="async" width="20" height="20" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/5/5d/Ram_sounding.svg/30px-Ram_sounding.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/5/5d/Ram_sounding.svg/40px-Ram_sounding.svg.png 2x" data-file-width="512" data-file-height="512" /></a></span> <a href="/w/index.php?title=Ram_sounding&action=edit&redlink=1" class="new" title="Ram sounding (page does not exist)">Ram sounding</a></li></ul> <ul><li><span class="noviewer" typeof="mw:File"><a href="/wiki/File:Rock_control_drilling.svg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/e/e4/Rock_control_drilling.svg/20px-Rock_control_drilling.svg.png" decoding="async" width="20" height="20" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/e/e4/Rock_control_drilling.svg/30px-Rock_control_drilling.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/e/e4/Rock_control_drilling.svg/40px-Rock_control_drilling.svg.png 2x" data-file-width="512" data-file-height="512" /></a></span> <a href="/w/index.php?title=Rock_control_drilling&action=edit&redlink=1" class="new" title="Rock control drilling (page does not exist)">Rock control drilling</a></li></ul> <ul><li><span class="noviewer" typeof="mw:File"><a href="/wiki/File:Rotary_pressure_sounding.svg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/8/81/Rotary_pressure_sounding.svg/20px-Rotary_pressure_sounding.svg.png" decoding="async" width="20" height="20" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/8/81/Rotary_pressure_sounding.svg/30px-Rotary_pressure_sounding.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/8/81/Rotary_pressure_sounding.svg/40px-Rotary_pressure_sounding.svg.png 2x" data-file-width="512" data-file-height="512" /></a></span> <a href="/wiki/Rotary-pressure_sounding" title="Rotary-pressure sounding">Rotary-pressure sounding</a></li></ul> <ul><li><span class="noviewer" typeof="mw:File"><a href="/wiki/File:Rotary_weight_sounding.svg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/f/f9/Rotary_weight_sounding.svg/20px-Rotary_weight_sounding.svg.png" decoding="async" width="20" height="20" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/f/f9/Rotary_weight_sounding.svg/30px-Rotary_weight_sounding.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/f/f9/Rotary_weight_sounding.svg/40px-Rotary_weight_sounding.svg.png 2x" data-file-width="512" data-file-height="512" /></a></span> <a href="/w/index.php?title=Rotary_weight_sounding&action=edit&redlink=1" class="new" title="Rotary weight sounding (page does not exist)">Rotary weight sounding</a></li></ul> <ul><li><span class="noviewer" typeof="mw:File"><a href="/wiki/File:Sample_series.svg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/0/05/Sample_series.svg/20px-Sample_series.svg.png" decoding="async" width="20" height="20" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/0/05/Sample_series.svg/30px-Sample_series.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/0/05/Sample_series.svg/40px-Sample_series.svg.png 2x" data-file-width="512" data-file-height="512" /></a></span> <a href="/wiki/Soil_test#Soil_testing" title="Soil test">Sample series</a></li></ul> <ul><li><span class="noviewer" typeof="mw:File"><a href="/wiki/File:Screw_plate_test.svg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/7/75/Screw_plate_test.svg/20px-Screw_plate_test.svg.png" decoding="async" width="20" height="20" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/7/75/Screw_plate_test.svg/30px-Screw_plate_test.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/7/75/Screw_plate_test.svg/40px-Screw_plate_test.svg.png 2x" data-file-width="512" data-file-height="512" /></a></span> <a href="/w/index.php?title=Screw_plate_test&action=edit&redlink=1" class="new" title="Screw plate test (page does not exist)">Screw plate test</a></li></ul> <ul><li><a href="/wiki/Deformation_monitoring" title="Deformation monitoring">Deformation monitoring</a> <ul><li><span class="noviewer" typeof="mw:File"><a href="/wiki/File:Inclinometer.svg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/c/c6/Inclinometer.svg/20px-Inclinometer.svg.png" decoding="async" width="20" height="20" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/c/c6/Inclinometer.svg/30px-Inclinometer.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/c/c6/Inclinometer.svg/40px-Inclinometer.svg.png 2x" data-file-width="512" data-file-height="512" /></a></span> <a href="/wiki/Inclinometer" title="Inclinometer">Inclinometer</a></li> <li><span class="noviewer" typeof="mw:File"><a href="/wiki/File:Settlement_recordings.svg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/3/35/Settlement_recordings.svg/20px-Settlement_recordings.svg.png" decoding="async" width="20" height="20" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/3/35/Settlement_recordings.svg/30px-Settlement_recordings.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/3/35/Settlement_recordings.svg/40px-Settlement_recordings.svg.png 2x" data-file-width="512" data-file-height="512" /></a></span> <a href="/wiki/Soil_consolidation" title="Soil consolidation">Settlement recordings</a></li></ul></li></ul> <ul><li><span class="noviewer" typeof="mw:File"><a href="/wiki/File:Shear_vane_test.svg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/a/ae/Shear_vane_test.svg/20px-Shear_vane_test.svg.png" decoding="async" width="20" height="20" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/a/ae/Shear_vane_test.svg/30px-Shear_vane_test.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/a/ae/Shear_vane_test.svg/40px-Shear_vane_test.svg.png 2x" data-file-width="512" data-file-height="512" /></a></span> <a href="/wiki/Shear_vane_test" title="Shear vane test">Shear vane test</a></li></ul> <ul><li><span class="noviewer" typeof="mw:File"><a href="/wiki/File:Simple_sounding.svg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/d/d4/Simple_sounding.svg/20px-Simple_sounding.svg.png" decoding="async" width="20" height="20" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/d/d4/Simple_sounding.svg/30px-Simple_sounding.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/d/d4/Simple_sounding.svg/40px-Simple_sounding.svg.png 2x" data-file-width="512" data-file-height="512" /></a></span> <a href="/w/index.php?title=Simple_sounding&action=edit&redlink=1" class="new" title="Simple sounding (page does not exist)">Simple sounding</a></li></ul> <ul><li><span class="noviewer" typeof="mw:File"><a href="/wiki/File:Standard_penetration_test.svg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/0/0d/Standard_penetration_test.svg/20px-Standard_penetration_test.svg.png" decoding="async" width="20" height="20" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/0/0d/Standard_penetration_test.svg/30px-Standard_penetration_test.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/0/0d/Standard_penetration_test.svg/40px-Standard_penetration_test.svg.png 2x" data-file-width="512" data-file-height="512" /></a></span> <a href="/wiki/Standard_penetration_test" title="Standard penetration test">Standard penetration test</a></li></ul> <ul><li><span class="noviewer" typeof="mw:File"><a href="/wiki/File:Total_sounding.svg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/6/60/Total_sounding.svg/20px-Total_sounding.svg.png" decoding="async" width="20" height="20" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/6/60/Total_sounding.svg/30px-Total_sounding.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/6/60/Total_sounding.svg/40px-Total_sounding.svg.png 2x" data-file-width="512" data-file-height="512" /></a></span> <a href="/wiki/Total_sounding" title="Total sounding">Total sounding</a></li></ul> <ul><li><span class="noviewer" typeof="mw:File"><a href="/wiki/File:Trial_pit.svg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/7/71/Trial_pit.svg/20px-Trial_pit.svg.png" decoding="async" width="20" height="20" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/7/71/Trial_pit.svg/30px-Trial_pit.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/7/71/Trial_pit.svg/40px-Trial_pit.svg.png 2x" data-file-width="512" data-file-height="512" /></a></span> <a href="/wiki/Trial_pit" title="Trial pit">Trial pit</a></li></ul> <ul><li><span class="noviewer" typeof="mw:File"><a href="/wiki/File:Visible_rock.svg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/1/14/Visible_rock.svg/20px-Visible_rock.svg.png" decoding="async" width="20" height="20" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/1/14/Visible_rock.svg/30px-Visible_rock.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/1/14/Visible_rock.svg/40px-Visible_rock.svg.png 2x" data-file-width="512" data-file-height="512" /></a></span> <a href="/wiki/Bedrock" title="Bedrock">Visible bedrock</a></li></ul> <ul><li><a href="/wiki/Nuclear_densometer" class="mw-redirect" title="Nuclear densometer">Nuclear densometer test</a></li></ul> <ul><li><a href="/wiki/Exploration_geophysics" title="Exploration geophysics">Exploration geophysics</a></li></ul> <ul><li><a href="/wiki/Crosshole_sonic_logging" title="Crosshole sonic logging">Crosshole sonic logging</a></li></ul> <ul><li><a href="/wiki/Pile_integrity_test" title="Pile integrity test">Pile integrity test</a></li></ul> <ul><li><a href="/wiki/Wave_equation_analysis" title="Wave equation analysis">Wave equation analysis</a></li></ul></div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:10.0em;font-weight: normal;"><a href="/wiki/Soil_test" title="Soil test">Laboratory <br />testing</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="padding:0"><div style="padding:0 0.25em"> <li><a href="/wiki/Soil_classification" title="Soil classification">Soil classification</a></li> <li><a href="/wiki/Atterberg_limits" title="Atterberg limits">Atterberg limits</a></li> <li><a href="/wiki/California_bearing_ratio" title="California bearing ratio">California bearing ratio</a></li> <li><a href="/wiki/Direct_shear_test" title="Direct shear test">Direct shear test</a></li> <li><a href="/wiki/Hydrometer" title="Hydrometer">Hydrometer</a></li> <li><a href="/wiki/Proctor_compaction_test" title="Proctor compaction test">Proctor compaction test</a></li> <li><a href="/wiki/R-value_(soils)" title="R-value (soils)">R-value</a></li> <li><a href="/wiki/Sieve_analysis" title="Sieve analysis">Sieve analysis</a></li> <li><a href="/wiki/Triaxial_shear_test" title="Triaxial shear test">Triaxial shear test</a></li> <li><a href="/wiki/Oedometer_test" title="Oedometer test">Oedometer test</a></li> <li><a href="/wiki/Hydraulic_conductivity#Experimental_approach" title="Hydraulic conductivity">Hydraulic conductivity tests</a></li> <li><a href="/wiki/Water_content#Measurement" title="Water content">Water content tests</a></li> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Soil" title="Soil">Soil</a></th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:10.0em;font-weight: normal;">Types</th><td class="navbox-list-with-group navbox-list navbox-odd" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Clay" title="Clay">Clay</a></li> <li><a href="/wiki/Silt" title="Silt">Silt</a></li> <li><a href="/wiki/Sand" title="Sand">Sand</a></li> <li><a href="/wiki/Gravel" title="Gravel">Gravel</a></li> <li><a href="/wiki/Peat" title="Peat">Peat</a></li> <li><a href="/wiki/Loam" title="Loam">Loam</a></li> <li><a href="/wiki/Loess" title="Loess">Loess</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:10.0em;font-weight: normal;">Properties</th><td class="navbox-list-with-group navbox-list navbox-even" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Hydraulic_conductivity" title="Hydraulic conductivity">Hydraulic conductivity</a></li> <li><a href="/wiki/Water_content" title="Water content">Water content</a></li> <li><a href="/wiki/Void_ratio" title="Void ratio">Void ratio</a></li> <li><a href="/wiki/Bulk_density" title="Bulk density">Bulk density</a></li> <li><a href="/wiki/Thixotropy" title="Thixotropy">Thixotropy</a></li> <li><a href="/wiki/Reynolds%27_dilatancy" class="mw-redirect" title="Reynolds' dilatancy">Reynolds' dilatancy</a></li> <li><a href="/wiki/Angle_of_repose" title="Angle of repose">Angle of repose</a></li> <li><a href="/wiki/Friction#Angle_of_friction" title="Friction">Friction angle</a></li> <li><a href="/wiki/Cohesion_(geology)" title="Cohesion (geology)">Cohesion</a></li> <li><a href="/wiki/Porosity" title="Porosity">Porosity</a></li> <li><a href="/wiki/Permeability_(earth_sciences)" class="mw-redirect" title="Permeability (earth sciences)">Permeability</a></li> <li><a href="/wiki/Specific_storage" title="Specific storage">Specific storage</a></li> <li><a href="/wiki/Shear_strength_(soil)" title="Shear strength (soil)">Shear strength</a></li> <li><a href="/wiki/Soil_liquefaction" title="Soil liquefaction">Sensitivity</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Structures <br />(<a href="/wiki/Soil-structure_interaction" title="Soil-structure interaction">Interaction</a>)</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:10.0em;font-weight: normal;">Natural features</th><td class="navbox-list-with-group navbox-list navbox-odd" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Topography" title="Topography">Topography</a></li> <li><a href="/wiki/Vegetation" title="Vegetation">Vegetation</a></li> <li><a href="/wiki/Terrain" title="Terrain">Terrain</a></li> <li><a href="/wiki/Topsoil" title="Topsoil">Topsoil</a></li> <li><a href="/wiki/Water_table" title="Water table">Water table</a></li> <li><a href="/wiki/Bedrock" title="Bedrock">Bedrock</a></li> <li><a href="/wiki/Subgrade" title="Subgrade">Subgrade</a></li> <li><a href="/wiki/Subsoil" title="Subsoil">Subsoil</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:10.0em;font-weight: normal;"><a href="/wiki/Earthworks_(engineering)" title="Earthworks (engineering)">Earthworks</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="padding:0"><div style="padding:0 0.25em"> <ul><li>Shoring structures <ul><li><a href="/wiki/Retaining_wall" title="Retaining wall">Retaining walls</a></li> <li><a href="/wiki/Gabion" title="Gabion">Gabion</a></li> <li><a href="/wiki/Ground_freezing" title="Ground freezing">Ground freezing</a></li> <li><a href="/wiki/Mechanically_stabilized_earth" title="Mechanically stabilized earth">Mechanically stabilized earth</a></li> <li><a href="/wiki/Pressure_grouting" title="Pressure grouting">Pressure grouting</a></li> <li><a href="/wiki/Slurry_wall" title="Slurry wall">Slurry wall</a></li> <li><a href="/wiki/Soil_nailing" title="Soil nailing">Soil nailing</a></li> <li><a href="/wiki/Tieback_(geotechnical)" title="Tieback (geotechnical)">Tieback</a></li></ul></li> <li><a href="/wiki/Land_development" title="Land development">Land development</a></li> <li><a href="/wiki/Landfill" title="Landfill">Landfill</a></li> <li><a href="/wiki/Digging" title="Digging">Excavation</a></li> <li><a href="/wiki/Trench" title="Trench">Trench</a></li> <li><a href="/wiki/Embankment_(earthworks)" title="Embankment (earthworks)">Embankment</a></li> <li><a href="/wiki/Cut_(earthworks)" title="Cut (earthworks)">Cut</a></li> <li><a href="/wiki/Causeway" title="Causeway">Causeway</a></li> <li><a href="/wiki/Terrace_(earthworks)" title="Terrace (earthworks)">Terracing</a></li> <li><a href="/wiki/Tunnel#Cut-and-cover" title="Tunnel">Cut-and-cover</a></li> <li><a href="/wiki/Cut_and_fill" title="Cut and fill">Cut and fill</a></li> <li><a href="/wiki/Fill_dirt" title="Fill dirt">Fill dirt</a></li> <li><a href="/wiki/Grading_(engineering)" class="mw-redirect" title="Grading (engineering)">Grading</a></li> <li><a href="/wiki/Land_reclamation" title="Land reclamation">Land reclamation</a></li> <li><a href="/wiki/Track_bed" title="Track bed">Track bed</a></li> <li><a href="/wiki/Erosion_control" title="Erosion control">Erosion control</a></li> <li><a href="/wiki/Earth_structure" title="Earth structure">Earth structure</a></li> <li><a href="/wiki/Expanded_clay_aggregate" title="Expanded clay aggregate">Expanded clay aggregate</a></li> <li><a href="/wiki/Crushed_stone" title="Crushed stone">Crushed stone</a></li> <li><a href="/wiki/Geosynthetics" title="Geosynthetics">Geosynthetics</a> <ul><li><a href="/wiki/Geotextile" title="Geotextile">Geotextile</a></li> <li><a href="/wiki/Geomembrane" title="Geomembrane">Geomembrane</a></li> <li><a href="/wiki/Geosynthetic_clay_liner" title="Geosynthetic clay liner">Geosynthetic clay liner</a></li> <li><a href="/wiki/Cellular_confinement" title="Cellular confinement">Cellular confinement</a></li></ul></li> <li><a href="/wiki/Infiltration_(hydrology)" title="Infiltration (hydrology)">Infiltration</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:10.0em;font-weight: normal;"><a href="/wiki/Foundation_(engineering)" title="Foundation (engineering)">Foundations</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Shallow_foundation" title="Shallow foundation">Shallow</a></li> <li><a href="/wiki/Deep_foundation" title="Deep foundation">Deep</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Soil_mechanics" title="Soil mechanics">Mechanics</a></th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:10.0em;font-weight: normal;">Forces</th><td class="navbox-list-with-group navbox-list navbox-even" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Effective_stress" title="Effective stress">Effective stress</a></li> <li><a class="mw-selflink selflink">Pore water pressure</a></li> <li><a href="/wiki/Lateral_earth_pressure" title="Lateral earth pressure">Lateral earth pressure</a></li> <li><a href="/wiki/Overburden_pressure" title="Overburden pressure">Overburden pressure</a></li> <li><a href="/wiki/Preconsolidation_pressure" title="Preconsolidation pressure">Preconsolidation pressure</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:10.0em;font-weight: normal;">Phenomena/<br />problems</th><td class="navbox-list-with-group navbox-list navbox-odd" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Permafrost" title="Permafrost">Permafrost</a></li> <li><a href="/wiki/Frost_heaving" title="Frost heaving">Frost heaving</a></li> <li><a href="/wiki/Consolidation_(soil)" class="mw-redirect" title="Consolidation (soil)">Consolidation</a></li> <li><a href="/wiki/Soil_compaction" title="Soil compaction">Compaction</a></li> <li><a href="/wiki/Earthquake" title="Earthquake">Earthquake</a> <ul><li><a href="/wiki/Response_spectrum" title="Response spectrum">Response spectrum</a></li> <li><a href="/wiki/Seismic_hazard" title="Seismic hazard">Seismic hazard</a></li> <li><a href="/wiki/S_wave" title="S wave">Shear wave</a></li></ul></li> <li><a href="/wiki/Landslide" title="Landslide">Landslide</a> analysis <ul><li><a href="/wiki/Slope_stability_analysis" title="Slope stability analysis">Stability analysis</a></li> <li><a href="/wiki/Landslide_mitigation" title="Landslide mitigation">Mitigation</a></li> <li><a href="/wiki/Landslide_classification" title="Landslide classification">Classification</a></li> <li><a href="/wiki/Sliding_criterion_(geotechnical_engineering)" title="Sliding criterion (geotechnical engineering)">Sliding criterion</a></li> <li><a href="/wiki/Road#Slab_stabilization" title="Road">Slab stabilisation</a></li></ul></li> <li><a href="/wiki/Bearing_capacity" title="Bearing capacity">Bearing capacity</a> * <a href="/wiki/Stress_distribution_in_soil" title="Stress distribution in soil">Stress distribution in soil</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Software" title="Software">Numerical analysis <br />software</a></th><td class="navbox-list-with-group navbox-list navbox-even hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/SEEP2D" title="SEEP2D">SEEP2D</a></li> <li><a href="/w/index.php?title=STABL&action=edit&redlink=1" class="new" title="STABL (page does not exist)">STABL</a></li> <li><a href="/wiki/SVFlux" title="SVFlux">SVFlux</a></li> <li><a href="/wiki/SVSlope" title="SVSlope">SVSlope</a></li> <li><a href="/wiki/UTEXAS" title="UTEXAS">UTEXAS</a></li> <li><a href="/wiki/Plaxis" title="Plaxis">Plaxis</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Geoprofessions" title="Geoprofessions">Related fields</a></th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Geology" title="Geology">Geology</a></li> <li><a href="/wiki/Geochemistry" title="Geochemistry">Geochemistry</a></li> <li><a href="/wiki/Petrology" title="Petrology">Petrology</a></li> <li><a href="/wiki/Earthquake_engineering" title="Earthquake engineering">Earthquake engineering</a></li> <li><a href="/wiki/Geomorphology" title="Geomorphology">Geomorphology</a></li> <li><a href="/wiki/Soil_science" title="Soil science">Soil science</a></li> <li><a href="/wiki/Hydrology" title="Hydrology">Hydrology</a></li> <li><a href="/wiki/Hydrogeology" title="Hydrogeology">Hydrogeology</a></li> <li><a href="/wiki/Biogeography" title="Biogeography">Biogeography</a></li> <li><a href="/wiki/Earth_materials" title="Earth materials">Earth materials</a></li> <li><a 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