基于ArcGIS的矿山边坡自动建模稳定性分析研究  

Automatic Numerical Modeling and Stability Analysis of Mining Slope Based on ArcGIS

作　　者：韩林 蔡永昌[1] HAN Lin;CAI Yongchang(Department of Geotechnical Engineering,College of Civil Engineering,Tongii University,Shanghai 200092,China)

机构地区：[1]同济大学土木工程学院地下建筑与工程系,上海200092

出　　处：《矿业研究与开发》2020年第6期148-152,共5页Mining Research and Development

基　　金：国家科技支撑计划项目(2011BAB08B01).

摘　　要：根据云南磷矿边坡的三维地层可视化模型,基于ArcGIS平台开发相应的转化插件,直接生成特定格式的栅格文件,自动建立无网格法的离散模型进行分析计算,并结合图论搜索方法分别计算不同位置处矿山边坡的最危险滑裂面以及安全系数。该方法规避了传统数值分析方法前处理中复杂且耗时的几何建模以及网格剖分,极大地简化了数值分析的前处理过程,程序实现简单,具备自动建模分析的能力。数值算例说明了采用该方法进行边坡稳定性分析的可靠性与便捷性,计算得到的最危险滑裂面位置以及安全系数可为工程监测以及边坡治理提供重要参考。According to 3D digital stratum visualization model of the phosphate mine slope in Yunnan,corresponding conversion add-in software was developed by ArcGIS platform,and a raster file in a specific format can be directly generated.After that,a discrete model with meshless method was automatically established for analysis and calculation,and then the most dangerous slip surface and safety factor of different locations at mine slope can be determined combining with graph theory search methods.This method avoids the complex and time-consuming geometric modeling and meshing in the pre-processing of traditional numerical analysis methods.It greatly simplifies the pre-processing process of numerical analysis.The program is simple to implement,and has the ability of automatic modeling and analysis.Numerical examples proved the accuracy and convenience of the proposed method was good in the stability analysis of the mining slope.The calculated location of the most dangerous slip surface and safety factor can provide a strong reference for engineering monitoring and slope management.

关 键 词：三维地层模型 ArcGIS二次开发 无网格法 图论算法 边坡稳定性分析 

分 类 号：TD824.7[矿业工程—煤矿开采]