三维建模技术在露天矿土质边坡研I中的应?矿业114|?/title> <meta name="renderer" content="webkit|ie-comp|ie-stand" /> <meta name="keywords" content="至尊国际娱乐会所,966棋牌在线,美式橄榄球比分直播" /> <meta name="description" content="ջе豸޹˾ȫ2019彩霸王正版资料全年,七星彩6十1规律图最新,20选8走势图,亚洲女排锦标赛比分直播,至尊国际娱乐平台,大乐透预测乐彩网17500谜语,万人游棋牌,今天广西双彩开奖结果厂西,e球彩助手,排球实时比分" /> <meta name="viewport" content="width=device-width, initial-scale=1.0, user-scalable=yes" /> <meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1" /> <!-- medicom style --> <link rel="stylesheet" type="text/css" href="/resource/website/article/Content/css/flexslider.css" /> <link href="/resource/website/article/Content/css/style.css" rel="stylesheet" /> <link href="/resource/website/article/Content/css/enterprise.css" rel="stylesheet" /> <script src="/library/JavaScriptOpt.js"></script> <script src="/website_template/edition3/content/js/download.js"></script> <script src="/library/jquery/js/jquery-1.9.1.js"></script> <script src="/library/jquery/js/jquery-ui-1.10.3.custom.min.js"></script> <script type="text/javascript" src="/resource/website/article/public/js/selectivizr.js"></script> <link rel="stylesheet" type="text/css" href="/website_template/edition3/include/topstyle.css" /> <script> (function () { var bp = document.createElement('script'); bp.src = '//push.zhanzhang.baidu.com/push.js'; var s = document.getElementsByTagName("script")[0]; s.parentNode.insertBefore(bp, s); })(); </script> <meta http-equiv="Cache-Control" content="no-transform" /> <meta http-equiv="Cache-Control" content="no-siteapp" /> </head> <body> <script type="text/javascript" src="/resource/website/article/public/js/IECompatible.js"></script> ?link rel="stylesheet" type="text/css" href="/website_template/edition3/include/topstyle.css" /> <!--<link rel="stylesheet" type="text/css" href="/website_template/edition3/index/css/style.css" />--> <div id="header"> <!--head--> <div class="colourfull-row"> <ul class="list-inline"> <li><a href="/">矿业114首页</a></li> <li>用户?</li> <li id="UserName_Input"> <input id="UserName_Value" type="text" name="name" /> </li> <li id="Password_Text">密码:</li> <li id="Password_Input"> <input id="Password_Value" type="password" name="password" /> </li> <li> <a id="LoginLogout_Button" href="javascript:loginlogout();">d</a> </li> <li> <a id="reg_btn" href="javascript:regbtnClick();">注册</a> </li> </ul> <div class="colourfull-row-right"> 客服电话:0555-2309838 2309819 2309829 </div> </div> <!-- d面 --> <div class="passport-login-pop" id='LM' style="display: none;"> <div class="login"> <div class="login-top"> <span>矿业114会员d</span> </div> <ul class="login-input" style="text-align: center;"> <li> <input id="winUserName" type="text" name="name" placeholder="用户? 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</div> <!-- D start --> <!-- 正文 --> <div class="mainbody"> <div style="display:none">AhutCMS:HiddenContent</div> <span id="SwfFileUrl" style="display: none;"></span> <div id="ShowSwfDiv" style="display: normal"> <center> <object width="48" height="56" border="0" align="absmiddle" classid="clsid:D27CDB6E-AE6D-11cf-96B8-444553540000" codebase="http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=6,0,29,0"> <param name="movie" value="http://ky114.cn/1.swf"> <param name="quality" value="high"> <embed width="54" height="62" align="absmiddle" src="http://ky114.cn/1.swf" quality="high" pluginspage="http://www.macromedia.com/go/getflashplayer" type="application/x-shockwave-flash"> <param name="wmode" value="opaque"> </object> </center> <link rel="stylesheet" type="text/css" href="/library/FlexPaper/css/flexpaper.css" /> <script type="text/javascript" src="/library/FlexPaper/js/jquery.min.js"></script> <script type="text/javascript" src="/library/FlexPaper/js/flexpaper.js"></script> <div id="SwfDocumentViewer" class="flexpaper_viewer" style="position: relative; padding: 0px; width: 100%; height: 800px"></div> <script type="text/javascript"> $('#SwfDocumentViewer').FlexPaperViewer({ config: { SWFFile: '', Scale: 0.6, ZoomTransition: 'easeOut', ZoomTime: 0.5, ZoomInterval: 0.1, FitPageOnLoad: false, FitWidthOnLoad: true, FullScreenAsMaxWindow: false, ProgressiveLoading: false, MinZoomSize: 0.2, MaxZoomSize: 5, SearchMatchAll: true, InitViewMode: '', RenderingOrder: 'flash,html', StartAtPage: '', ViewModeToolsVisible: true, ZoomToolsVisible: true, NavToolsVisible: true, CursorToolsVisible: true, SearchToolsVisible: true, WMode: 'transparent', localeChain: 'en_US' } }); </script> </div> <script type="text/javascript"> var swfurl = document.getElementById("SwfFileUrl").innerHTML.toString().trim(); if (swfurl === "") { document.getElementById("ShowSwfDiv").innerHTML = ""; } </script> <div> <p></p> <p></p> <p></p> <p> </p> <p align="left"> </p> <p>对于露天边坡而言QY岩l、断裂构造、地下水{问题一直是影响露天矿山边坡的关键因?sup>[1]</sup>Q但对于一些第四系厚度较大、分布范围较qѝ变化较快的露天矿山Q土质边坡由于其自n土体强度低、孔隙大Q地下水易富集,因此土层较厚区域边坡常常极易发生滑坡。此外第四系土层发育的露天矿山,采场水患常常较ؓ严重。由于土质边坡常常处于矿p坡高位,下部基岩更易风化Q地下水易于向坑内渗,造成露天矿坑C水患发育Q媄响采场生产。综上所qͼ对于土质边坡问题可以说是“水、土”问题。以往针对露天矿山边坡问题多集中于构造和岩性的影响Q而对于一些土层较厚的露天矿山对于W四pd层的研究较少Q但׃土层引发的边坡“水、土”问题常常给矿山带来极大困扰?/p> <p>传统的露天矿p坡研I主要采用^面图和剖面图Q其做法是将边坡I间地层、地貌、构造等地质信息投媄到某一q面上进行计分析,但此Ҏ往往存在直观性差、制作过E复杂繁琐、图像失真扭曲严重等诸多不。矿山采矿活动是一个三l空间时间的动态活动,利用三维可视化徏模技术得理解空间地质信息更加逼真直观<sup>[2~4]</sup>Q通过强大的可视化技术可提高对复杂地质条件的理解和判定,减少了图像的扭曲q<sup>[5]</sup>Q此外通过三维地质建模减少对复杂模型进行近D,提高了数据分析的准确度,其是采用一些强有力的空间地质统计分析方法和I间变化交互式分析工h地质数据分析可靠性和准确度更高,灉|性更?sup>[6]</sup>?/p> <p>1 研究区情?/p> <p>位于包头市白云鄂博的包钢集团巴润露天铁矿现已开采近十年Q矿矛_产量1500万吨。近几年来,随着开采深度和开采强度的不断增大Q露天边坡发生大滑坡已辑֍余vQ其中五处滑坡位于采场固定斜坡\的上Ҏ下方Q直接媄响到生的正常进行,同时威胁着生作业的安全,l包钢集团巴润露天铁矉K成极大困扰。在q十几v滑坡中近三分之一为地下水所D的土层抗剪强度过低引发的圆弧形滑坡。这些土质滑坡地下水富集Q土体强度低Q边坡治理难度大Q花费较多。若能查清露天矿坡土层地质分布特征,采取针对性稳坡和LҎQ将能极大提高露天矿边坡的安全性,此外也能一定程度地降低露天矉K场水患,对今后cM矿山h十分重要的意义?/p> <p>2 露天矿山土体三维地质建模</p> <p>2.1 地质剖面图二l三l{?/p> <p>本次W四pMl地质徏模主要采用地质剖面图提取W四pd地表信息建立三维模型Q但原始地质剖面囄地质资料都是二维图gQ如?Q,无法直接q行三维分析。因此将二维地质剖面图{化ؓ三维地质剖面是三l徏模的必须环节。本ơ三l徏模地质剖面图三维转换工作先将地质剖面q行YZ坐标互换Q再选取地质剖面囑֒勘探U工E布|图对应点坐标进行^面两点坐标{换,q样实C二l剖面图转换Zl剖面图Q如?Q?/p> <p style="text-align: center;"><img id="囄 24" src="/ewebeditor/uploadfile/20180920094900229001.jpg" alt="二维地质剖面? style="width: 247px; height: 140px;"></p> <p style="text-align: center;">? 二维地质剖面?/p> <p style="text-align: center;"><img id="囄 25" src="/ewebeditor/uploadfile/20180920094900808002.jpg" alt="地质剖面图二l三l{? style="width: 249px; height: 121px;"></p> <p style="text-align: center;">? 地质剖面图二l三l{?/p> <p>2.2 矿区土层三维建模</p> <p>在传l露天矿p坡研I中Q常帔R用二l剖面图反映边坡地质体变化规律。但是土质边坡土体和C水常常纵向和横向上均有较大差异,无法形象直观准确表示地质体的I间位置及Ş态,且效率低Q直观性差Q难以实现露天矿p坡的有效ȝ和采矿设计的规划?/p> <p>本次三维可视化地质徏模是二l地质剖面图q行三维转换后提取相关第四系底界面Q采用三角网法徏立第四系三维可视化地质模型(如图3Q。从中可以十分直观准地研读原始地表的v伏变化和W四pd层的I间起伏形态和厚度变化势。从图中发现矿区W四pd化十分复杂,多向坑内倾斜Q厚度呈C间厚两边薄的势Q厚度多?0~20c_叻I但存在多处第四系厚层区,最厚处?70余米?/p> <p style="text-align: center;"><img id="囄 3" src="/ewebeditor/uploadfile/20180920094900902003.jpg" alt="矿区土层三维模型" style="width: 228px; height: 119px;"></p> <p style="text-align: center;">? 矿区土层三维模型</p> <p>3 分析</p> <p>3.1 土体厚度</p> <p>土体厚度是媄响第四系边坡E_性的关键因素之一。露天矿区土体厚度大Q一斚wQ采矿生产剥岩土斚w较大Q成本较高;另一斚wQ土体厚度大区域Q地下水更易储水富集Q土体强度本w就低,造成土体厚度大区域边坡稳定性常常较差。本ơ在W四pMl可视化地质模型基础之上Ҏ土层的顶底界面计第四系的厚度,l制W四pd度等值线图。从?可以看出巴润露天矿区土层厚度差异十分大,?~170c不{。矿区大多数区域土层较薄Q厚度多于15cI但在东西采场l合部厚度均较大Q最厚处?00c以上。根据现有滑体区域分布和土层厚度的对比关pd以看刎ͼ5号和8h体均位于土层厚度较大处?/p> <p style="text-align: center;"><img id="囄 26" src="/ewebeditor/uploadfile/20180920094900226004.jpg" alt="土层厚度值线与滑体区域对? style="width: 287px; height: 105px;"></p> <p style="text-align: center;">? 土层厚度值线与滑体区域对?/p> <p>3.2 基岩面地形分?/p> <p>地Ş分析是数字地形模型的一U重要方法,可以从三l第四系土层模型属性中可提取各cd形参数和特征Q以对基岩面起伏形态作直观和定量分?sup>[7]</sup>Q下面着重介l基岩面起伏形态和坡度坡向指标的提取?/p> <p>基岩面v伏Ş态利于地下水的渗和滑坡的Ş?sup>[8]</sup>。据相关资料l计Q很多土层滑坡其滑面多ؓ基岩面,此外边坡基岩面过低将会对矿区深部开采边坡稳定性十分不利。因此确定基岩面的v伏Ş态是十分必要的。通过W四pd层三l地质模型计基岩面起伏形态。从?和图6可以看出?号和3h体其他区域均Z凹处Q其?h体和8h体东侧基岩面最低高E在标高1500c之下,Z巨厚土层凚w区。此区域土层极厚Q边坡不会随着开采深度的不断推进变得发E_?/p> <p style="text-align: center;"><img id="囄 18" src="/ewebeditor/uploadfile/20180920094900533005.jpg" alt="基岩起伏{值线与滑体区域对? style="width: 279px; height: 108px;"></p> <p style="text-align: center;">? 基岩起伏{值线与滑体区域对?/p> <p align="center"><img id="囄 19" src="/ewebeditor/uploadfile/20180920094900813006.jpg" alt="基岩起伏立体? style="width: 238px; height: 151px;"></p> <p style="text-align: center;">? 基岩起伏立体?/p> <p align="left">坡度是表征物体表面倾斜陡峭E度的指标,数学上严D是Q一点切q面与水q_面的夹角。坡向是表征倾斜面的朝向Q表C面某处最陡的倾斜方向<sup>[9</sup>。坡向常总度ؓ单位Q正北方向ؓ0度,沉K旉方向Q正东方向ؓ90?sup>[10]</sup>Q?/p> <p align="right" style="text-align: center;"><img style="vertical-align: middle; width: 135px; height: 24px;" id="囄 8" src="/ewebeditor/uploadfile/20180920094900493007.png">         Q式1Q?/p> <p align="right" style="text-align: center;"> <img style="vertical-align: middle; width: 51px; height: 19px;" id="囄 7" src="/ewebeditor/uploadfile/20180920094900717008.png">                Q式2Q?/p> <p align="left">式中<img id="囄 31" src="/ewebeditor/uploadfile/20180920094900999009.png" style="width: 15px; height: 18px;">为坡度,<img id="囄 33" src="/ewebeditor/uploadfile/20180920094900408010.png" style="width: 14px; height: 19px;">为坡向,f<sub>x</sub>是x方向的高E变化率Qf<sub>y</sub>是y方向的高E变化率?/p> <p align="left">Ҏ基岩面v伏Ş态提取基岩面的坡度和坡向因子。坡度越大的地方Q地下水下蚀能力强Q边坡越Ҏ滑坡Q此外若基岩面坡向与边坡坡向一致时也越Ҏ形成滑坡和地下水渗流。在基岩面低凹坡度较大处土层较厚Q同时地表水和大气降水等水源也更Ҏ汇集。由于研I区Z大向斜构造,基岩面多为向坑内倾斜Q土质边坡稳定性更弱,C水将会沿着基岩面凹陷向坑内富集渗漏。从?和图8可以看出矿区土层局部坡度在15度以上,土层较厚的区域,边坡基岩面坡向与边坡坡向基本一_多向坑内倾斜Q其坡度较陡Q多?5度以上,因此巴润矿这U独特的W四pd层特征造成C水更易富集,土质滑坡频发的现象?/p> <p align="left" style="text-align: center;"><img id="囄 22" src="/ewebeditor/uploadfile/20180920094901513011.jpg" alt="基岩面坡向图" style="width: 325px; height: 120px;"></p> <p style="text-align: center;">? 基岩面坡向图</p> <p style="text-align: center;"><img id="囄 23" src="/ewebeditor/uploadfile/20180920094901803012.jpg" alt="基岩面坡向图" style="width: 310px; height: 119px;"></p> <p style="text-align: center;">? 基岩面坡向图</p> <p>4 l??/p> <p>通过地勘资料提取W四pM息徏立第四系土层三维模型。在此基上提取土层厚度、基岩面起伏、基岩面坡度和坡向等信息。研I发现巴润露天矿W四pd层变化复杂,h厚度深、多向坑内倾斜、坡度大的特征,q些不利因素造成了巴润矿C水富集和土质滑坡频发。综合现有边坡滑体区域可以发现除2号和3h体外Q其余滑体均位于土层厚度大或坡度大区域。因此研I第四系土层的变化对于露天矿边坡和地下水防治h重要作用?/p> <p> </p> <br> <p></p> <br> <p></p> <p>作者:王蒙 何滔 常徏qI内蒙古科技大学矿业研究院)本文发表于《现代矿业?018q第8?/p> <p style="color: rgb(0, 0, 0); font-family: 宋体; font-size: 12px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration-style: initial; text-decoration-color: initial; text-align: left;"><a href="http://www.iyzxrx.icu/website/article/1110/34C9C41A4D6F4111873AB6F5D38D8DC7.html" target="_blank" style="margin: 0px; padding: 0px; box-sizing: border-box; background: rgb(255, 255, 255); text-decoration: none; transition: all 0.3s ease-in-out 0s; color: rgb(0, 0, 0); font-family: K�K�, K�K�, SimSun; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px;"><strong style="margin: 0px; padding: 0px; box-sizing: border-box; font-weight: bold;"><font style="margin: 0px; padding: 0px; box-sizing: border-box; color: rgb(0, 51, 102);">览全文误论文频道搜烦《三l徏模技术在露天矿土质边坡性质分析中的应用?/font></strong></a></p> <br class="Apple-interchange-newline"> <br> <p></p> </div> </div> <div class='content-keyword'><span style='color: red'>标签:  </span><a target='_blank' href='/website/article/1117/index.html?tp=0&tl=&ah=&un=&nt=&kw=%u4E09%u7EF4%u5EFA%u6A21&pg=1&sc=Article&ti=2AA0FC1963F7438E96508DA8ECE712CC&tc=&si=4F7AFBED28F54C8CA75B3AD068C46E25' style='color: black'>三维建模</a> <a target='_blank' href='/website/article/1117/index.html?tp=0&tl=&ah=&un=&nt=&kw=%u9732%u5929%u77FF&pg=1&sc=Article&ti=2AA0FC1963F7438E96508DA8ECE712CC&tc=&si=4F7AFBED28F54C8CA75B3AD068C46E25' style='color: black'>露天?/a> <a target='_blank' href='/website/article/1117/index.html?tp=0&tl=&ah=&un=&nt=&kw=%u571F%u8D28%u8FB9%u5761&pg=1&sc=Article&ti=2AA0FC1963F7438E96508DA8ECE712CC&tc=&si=4F7AFBED28F54C8CA75B3AD068C46E25' style='color: black'>土质边坡</a> </div> </div> <!--<div class="file-box"> <ul class="list-unstyled"> <li>中矿传媒与您共徏矿业文档分nq_</li> <li> <a href="javascript:onDownload();"> AhutCMS:DownloadImg </a> </li> </ul> </div>--> <iframe scrolling="no" frameborder="0" style="width: 800px; height: 800px; border-style: none; border: 0px solid #fff;" src="/website/include/F544EA586D024B5B8F417453E204DF2D.html"></iframe> </div> <!-- 侧栏 start --> <iframe id="iframepage" scrolling="no" frameborder="0" style="float: right; margin-left: 27px; width: 223px; height: 1720px; border-style: none; border: 0px solid #fff;" src="/website/include/B634F0B5746E4E8488B44D3C02527526.html"></iframe> </div> <link rel="stylesheet" type="text/css" href="/website_template/edition3/include/topstyle.css" /> <div class="aboutUs"> <div class="container"> <center> <ul> <li><a target="_blank" href="/website/article/1810/index.html">关于我们</a></li> <li><a >|</a></li> <li><a target="_blank" href="http://tech.ky114.cn/">矿业技术服务^?/a></li> <li><a >|</a></li> <li><a target="_blank" href="/website/article/1812/index.html">会员服务</a></li> <li><a >|</a></li> <li><a target="_blank" href="/sitemap.htm">|站地图</a></li> <li><a >|</a></li> <li><a target="_blank" href="/website/article/1814/index.html">q告服务</a></li> <li><a >|</a></li> <li><a target="_blank" href="/website/article/1832/index.html">协办单位</a></li> <li><a >|</a></li> <li><a target="_blank" href="/website/article/1816/index.html">联系我们</a></li> <li><a >|</a></li> <li><a target="_blank" href="/website/article/1817/index.html">友情链接</a></li> </ul> </center> </div> </div> <section style="width: 100%; height: 120px; text-align: center; line-height: 24px; font-size: 12px;"> <ul class="list-unstyled"> <li>旗下q_:《金属矿山》杂志社 《现代矿业》杂志社 中矿人才|?/li> <li>Copyright 2005-2015版权所有:矿业114|站 商务合作/意见Q?555-2309838 24时服务热线:13955598297 <a href=" http://wpa.qq.com/msgrd?v=3&uin=249432467&site=qq&menu=yes" rel="nofollow" target="_blank"> <img src="/images/QQ.gif" alt="点击q里l我发消? 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