基于ArcGIS的露天矿边坡稳定性计算方法  

Computing Method of Slope Stability for Open-pit Coal Mine Based on ArcGIS

作　　者：孙世国 王超 

机构地区：[1]北方工业大学土木工程学院,北京100144

出　　处：《煤矿安全》2018年第1期142-144,共3页Safety in Coal Mines

基　　金：国家自然科学基金资助项目(41772335);国家重点研发计划课题资助项目(2016YFC0701810);"十二五"国家科技支撑计划资助项目(2012BAK09B06)

摘　　要：针对GIS系统本身不能直接实现边坡地形的稳定性定量计算问题,基于GIS对Python二次开发的支持力度,运用有效的数据提取方法能够实现各栅格单元和矢量单元属性值运算和储存;根据剩余推力法计算模型和全局滑面搜索方法设计边坡稳定性计算的脚本工具。结合某露天煤矿地质资料,执行边坡稳定系数计算和最危险滑动面搜索脚本,并对比MIDAS/GTS计算结果进行验证,结果表明该方法可行。According to the fact that GIS can not directly realize the quantitative calculation of slope stability,the application of effective extracting method of data can realize the operation and storage of the attribute value of every grid cell and vector unit based on the strength of GIS support for Python,which can contribute to realize the stability calculation for slope with the design of the script tool based on the residual thrust method and GCSF method.Combined with geological data of the open-pit coal mine,running the script to calculate the stability factor for slope and search the most dangerous sliding surface,and then compared with the numerical calculating results of MIDAS/GTS to verify,the result shows that the stability analysis method for slope based on ArcGIS provides a totally new idea.

关 键 词：露天矿边坡稳定性 ARCGIS 二次开发 剩余推力法 滑动面搜索 数值模拟 

分 类 号：TD824.71[矿业工程—煤矿开采]