摘要
以某矿山露采边坡为例,利用Arc GIS软件建立了边坡三维地层可视化模型,针对岩土工程特点,采用一种简化方法实现了从矿山边坡三维可视化模型到FALC3D计算模型的耦合与自动转化,开发了相应的计算模型生成插件。该方法充分利用了地层三维可视化模型可较好地表达研究区域内地质体的空间几何形态的优点,拓展了可视化模型的应用范围,排除了从地层可视化模型全自动生成精确岩土工程数值计算模型在网格形状、材料区域边界、断层/节理单元等方面所面临的困难,极大地简化了数值模拟的前处理工作。数值模拟结果表明:随着网格尺寸的不断加密,本研究方法得到的计算结果可满足岩土工程分析的实际需求,具有良好的工程应用前景。
Taking the slope of a open-pit mine as an example,the 3D stratum visualized model is established,and the coupling of 3D stratum model and slope numerical simulation using FLAC3D software is realized preliminarily in a simplified transfer method,according to the characteristics of geotechnical engineering,based on the plug-in of ArcGIS software is developed.The coupling method of 3D stratum model and slope numerical simulation using FLAC3D software take the advantages of the 3D stratum visual-ized model which could express the geological condition in the research area,it extends the application of the visualized model,avoids the great difficulties of generating precise numerical model from visualized model in mesh shape,material area boundary and fault/joint element and simplifies the pre-process of nu-merical simulation.The numerical simulation results show that as the mesh size gets refined,the calcula-tion results obtained by the method in this paper gradually approaches the results of precise numerical model,which could satisfy the analysis requirements of geotechnical engineering,therefore,it has good en-gineering prospects.
出处
《现代矿业》
CAS
2015年第10期110-112,共3页
Modern Mining
基金
"十二五"国家科技支撑计划项目(编号:2011BAB08B01)
