CINXE.COM

<html> <head><script type="text/javascript">/* <![CDATA[ */_cf_loadingtexthtml="<img alt=' ' src='/CFIDE/scripts/ajax/resources/cf/images/loading.gif'/>"; _cf_contextpath=""; _cf_ajaxscriptsrc="/CFIDE/scripts/ajax"; _cf_jsonprefix='//'; _cf_websocket_port=8577; _cf_flash_policy_port=1243; _cf_clientid='9AE70EC6E1B103C89B94EAA5245D4CAE';/* ]]> */</script><script type="text/javascript" src="/CFIDE/scripts/ajax/yui/yahoo-dom-event/yahoo-dom-event.js"></script> <script type="text/javascript" src="/CFIDE/scripts/ajax/yui/calendar/calendar-min.js"></script> <script type="text/javascript" src="/CFIDE/scripts/ajax/yui/container/container_core-min.js"></script> <script type="text/javascript" src="/CFIDE/scripts/ajax/yui/menu/menu-min.js"></script> <script type="text/javascript" src="/CFIDE/scripts/ajax/messages/cfmessage.js"></script> <script type="text/javascript" src="/CFIDE/scripts/ajax/package/cfajax.js"></script> <script type="text/javascript" src="/CFIDE/scripts/ajax/package/cfmenu.js"></script> <link rel="stylesheet" type="text/css" href="/CFIDE/scripts/ajax/resources/yui/yui.css" /> <style>#main .yuimenubaritem a.selected {background-color:dabebc;text-decoration:none;color:#fff;} </style> <meta http-equiv="CACHE-CONTROL" content="NO-CACHE"> <meta http-equiv="EXPIRES" content="01 Jan 1970 00:00:00 GMT"> <meta http-equiv="PRAGMA" content="NO-CACHE"> <meta name="description" content="Minerals & Metallurgical Processing"> <script type="text/javascript" src="JS/swfobject.js"></script> <script type="text/javascript" src="JS/shrinkgrow.js"></script> <link rel="StyleSheet" type="text/css" href="http://transactions.smenet.org/style/trans_ie.css"> <script type="text/javascript"> var flashvars = {}; var params = {}; params.scale = "noscale"; params.salign = "tl"; params.wmode = "transparent"; var attributes = {}; swfobject.embedSWF("MediaSlideshowFX.swf", "MediaSlideshowFXDiv", "690", "400", "9.0.0", false, flashvars, params, attributes); </script> <link rel='icon' href='images/transactions.ico' type='image/x-icon'><title>Transactions of the Society for Mining, Metallurgy</title> <script type="text/javascript">/* <![CDATA[ */ ColdFusion.Ajax.importTag('CFMENU'); /* ]]> */</script> <script type="text/javascript">/* <![CDATA[ */ var _cf_menu_init_24343508542127549=function() { var _cf_menubar=ColdFusion.Menu.initMenuBar("main", { autosubmenudisplay:true, showdelay:250, hidedelay:10, lazyload:true}); _cf_menubar.render(); _cf_menubar.show(); };ColdFusion.Event.registerOnLoad(_cf_menu_init_24343508542127549); /* ]]> */</script> <meta name="citation_journal_title" content="Transactions of the Society for Mining, Metallurgy, and Exploration, Inc."> <meta name="citation_journal_abbrev" content="Transactions"> <meta name="citation_publication_date" content="2013/01/01"> <meta name="citation_title" content="Design and implementation of a polycarbonate safe haven wall in an underground coal mine"> <meta name="citation_volume" content="334"> <meta name="citation_issue" content="1"> <meta name="citation_firstpage" content="391"> <meta name="citation_lastpage" content="400"> <meta name="citation_publisher" content="SME"> <meta name="citation_author" content="Perry, K.A."> <meta name="citation_author" content="Meyr, R.A."> </head> <body> <script type="text/javascript"> var gaJsHost = (("https:" == document.location.protocol) ? "https://ssl." : "http://www."); document.write(unescape("%3Cscript src='" + gaJsHost + "google-analytics.com/ga.js' type='text/javascript'%3E%3C/script%3E")); </script> <script type="text/javascript"> try{ var pageTracker = _gat._getTracker("UA-2999786-37"); pageTracker._trackPageview(); } catch(err) {} </script> <script type="text/javascript"> function recordOutboundLink(link, category, action) { try { var pageTracker=_gat._getTracker("UA-2999786-37"); pageTracker._trackEvent(category, action); setTimeout('document.location = "' + link.href + '"', 100) }catch(err){} } </script> <div style=" height: 90px; background-color:AA837F; padding:10px 0px;"> <div style="color:black; font-size:40px; text-align:center; padding-top:15px; font-family:'Times New Roman',Georgia,Serif;">Transactions of the Society for Mining, Metallurgy, and Exploration, Inc.</div> </div> <center> <div style="background-color:dabebc margin:0px auto;"> <div id="mainBody" style="padding-top:10px;"> <div> <div style=" height:120px; margin:0px auto; background-color:#FFFFFF;"> <div style="float:left; height:120px; width:25%;"> <a href="http://transactions.smenet.org/index.cfm" target="_self"> <img src="http://transactions.smenet.org/images/TransactionsLogo.jpg" height="107" alt="Transactions home"> </a> </div> <div style="float:left; height:80px; width:50%; padding-top:20px;"> <center><h1></h1></center> </div> <div style="float:right; height:120px; border-color:red; border-width:0px; border-style:solid; width:25%;" > <div style="border-color:blue; border-width:0px; border-style:solid; padding-bottom:2px; text-align:right;"> <a href="http://www.smenet.org" target="_blank" onClick="javascript: pageTracker._trackPageview('/outbound_sme_links/www.smenet.org');"> <img style="border:0px" src="http://transactions.smenet.org/images/SME_logo.jpg" height="60" alt="SME home"> </a> </div> <div style="height:60px; border-color:green; border-width:0px; border-style:solid; padding-bottom:-10px; float:right;"> <div style="float:top; border-color:red; border-width:0px; border-style:solid;"> <div>   </div>   <a href="http://www.facebook.com/pages/Littleton-CO/Society-for-Mining-Metallurgy-Exploration-SME/43749334577" target="_blank" onClick="javascript: pageTracker._trackPageview('/outbound_links/facebook.com');"> <img src="http://transactions.smenet.org/images/facebook.jpg" alt="SME FaceBook"></a> <a href="https://twitter.com/MineEngineering" target="_blank" onClick="javascript: pageTracker._trackPageview('/outbound_links/twitter.com');"> <img src="http://transactions.smenet.org/images/twitter.jpg" alt="SME Twitter"></a> <a href="http://www.linkedin.com/groups?home=&gid=40505&trk=anet_ug_hm&goback=%2Eanh_40505%2Eana_40505_1271739579501_3_1" target="_blank" onClick="javascript: pageTracker._trackPageview('/outbound_links/linkedin.com');"> <img src="http://transactions.smenet.org/images/linkedin.jpg" alt="SME LinkedIn"></a> <a href="http://me.smenet.org/feeds/WebOnlyArticleFeed.xml" target="_blank" onClick="javascript: pageTracker._trackPageview('/outbound_links/rss');"> <img src="http://transactions.smenet.org/images/rss.jpg" alt="RSS Feed"></a> </div> </div> </div> </div> <div style="margin:0 auto; width:100%;"> <div id="main" class="yuimenubar yuimenubarnav" style=" height:44px; background-color:C09E9B; width:100%; font-weight:bold;"> <div class="bd"> <ul class="first-of-type"> <li id="cf_menuitem24343508542127550" class="yuimenubaritem" style="height:44px; background-image:url('http://transactions.smenet.org/images/Menu_Segment.jpg'); font-weight:bold; padding-top:10px;" onmouseover="ColdFusion.Menu.menuItemMouseOver('cf_menuitem24343508542127550', '#1B0100');" onmouseout="ColdFusion.Menu.menuItemMouseOut('cf_menuitem24343508542127550');"><a href="http://transactions.smenet.org/index.cfm" class="yuimenubaritemlabel" style="color:#40304E;">Home</a> </li><li id="cf_menuitem24343508542127551" class="yuimenubaritem" style="height:44px; background-image:url('http://transactions.smenet.org/images/Menu_Segment.jpg'); font-weight:bold; padding-top:10px; width:100px;" onmouseover="ColdFusion.Menu.menuItemMouseOver('cf_menuitem24343508542127551', '#1B0100');" onmouseout="ColdFusion.Menu.menuItemMouseOut('cf_menuitem24343508542127551');"><a href="http://transactions.smenet.org/purchase.cfm" class="yuimenubaritemlabel" style="color:#40304E;">Purchase</a> </li><li id="cf_menuitem24343508542127552" class="yuimenubaritem" style="height:44px; background-image:url('http://transactions.smenet.org/images/Menu_Segment.jpg'); font-weight:bold; padding-top:10px; width:100px;" onmouseover="ColdFusion.Menu.menuItemMouseOver('cf_menuitem24343508542127552', '#1B0100');" onmouseout="ColdFusion.Menu.menuItemMouseOut('cf_menuitem24343508542127552');"><a href="http://transactions.smenet.org/submit.cfm" class="yuimenubaritemlabel" style="color:#40304E;">Contribute</a> </li><li id="cf_menuitem24343508542127553" class="yuimenubaritem" style="height:44px; background-image:url('http://transactions.smenet.org/images/Menu_Segment.jpg'); font-weight:bold; padding-top:10px;" onmouseover="ColdFusion.Menu.menuItemMouseOver('cf_menuitem24343508542127553', '#1B0100');" onmouseout="ColdFusion.Menu.menuItemMouseOut('cf_menuitem24343508542127553');"><a href="http://transactions.smenet.org/login.cfm?context=4" class="yuimenubaritemlabel" style="color:#40304E;">Log On</a> </li> </ul> </div> </div> </div> <div style="width:1200px;"> <div> <div style="padding-top:20px; padding-left:20px; padding-right:100px;"> <br> <h1> Design and implementation of a polycarbonate safe haven wall in an underground coal mine </h1> <h2 style="padding-left:30px; padding-right:25px; padding-top:20px; color:black; font-size:100%;"> <i> Transactions of the Society for Mining, Metallurgy, and Exploration </i> , 2013, Vol. 334, No. 1, pp. 391-400 <br> <br> Perry, K.A.; Meyr, R.A. </h2> <br> ABSTRACT: <br> <p>Following three major mining accidents in 2006, the MINER Act of 2006 was enacted by the U.S.Congress. The U.S. Mining Safety and Health Administration subsequently released the Final Rule on Refuge Alternatives for Underground Coal Mines, which required every underground coal mine to install refuge alternatives to help prevent future fatalities of trapped miners in the event of a disaster. The following paper documents the research that was performed on a structural wall to be used in conjunction with a breathable air system to create a refuge alternative. A 103.4-kPa (15-psi) safe haven polycarbonate wall for use in underground coal mines was designed and modeled using finite element modeling in ANSYS Explicit Dynamics. The successful safe haven wall design was modeled for an actual underground coal mine environment using the explicit finite difference formulation program FLAC3D to determine the responses of the wall and surrounding strata within a mine. A full-scale design was fabricated and installed in an underground coal mine to determine any construction constraints and as a final step in proof of concept for the safe haven wall design. This paper is meant to introduce the reader to a new wall concept to be used in conjunction with current technology.<br />  </p> <br> <br> </div> </div> </div> </div> </body>