<?xml version="1.0" encoding="UTF-8"?> <article key="pdf/10012191" mdate="2021-08-20 00:00:00"> <author>S. Taghvamanesh and R. Ziaie Moayed</author> <title>A Review on Bearing Capacity Factor N&amp;gamma; of Shallow Foundations with Different Shapes</title> <pages>226 - 237</pages> <year>2021</year> <volume>15</volume> <number>8</number> <journal>International Journal of Geotechnical and Geological Engineering</journal> <ee>https://publications.waset.org/pdf/10012191</ee> <url>https://publications.waset.org/vol/176</url> <publisher>World Academy of Science, Engineering and Technology</publisher> <abstract>There are several methods for calculating the bearing capacity factors of foundations and retaining walls. In this paper, the bearing capacity factor N&amp;gamma; (shape factor) for different types of foundation have been investigated. The formula for bearing capacity on c&amp;ndash;&amp;phi;&amp;ndash;&amp;gamma; soil can still be expressed by Terzaghi&amp;rsquo;s equation except that the bearing capacity factor N&amp;gamma; depends on the surcharge ratio, and friction angle &amp;phi;. It is apparent that the value of N&amp;gamma; increases irregularly with the friction angle of the subsoil, which leads to an excessive increment in N&amp;gamma; of foundations with larger width. Also, the bearing capacity factor N&amp;gamma; will significantly decrease with an increase in foundations width. It also should be highlighted that the effect of shape and dimension will be less noticeable with a decrease in the relative density of the soil. Hence, the bearing capacity factor N&amp;gamma; relatively depends on foundations width, surcharge and roughness ratio. This paper presents the results of various studies conducted on the bearing capacity factor N&amp;gamma; of different types of shallow foundation and foundations with irregular geometry (ring footing, triangular footing, shell foundations and etc.) Further studies on the effect of bearing capacity factor N&amp;gamma; on mat foundations and the characteristics of this factor with or without consideration for the presence of friction between soil and foundation are recommended.</abstract> <index>Open Science Index 176, 2021</index> </article>