复杂矿山地质形体的三维数值网格划分自动化平台  

An automation platform for generating the 3D numerical grids of mining fields with complex geomorphology

作　　者：向鹏[1] 纪洪广[1] 邹静[2] 张月征[1] 伍伟斌[1] 

机构地区：[1]北京科技大学土木与环境工程学院,北京100083 [2]中国石化工程建设有限公司,北京100101

出　　处：《岩土力学》2015年第4期1211-1216,共6页Rock and Soil Mechanics

基　　金：国家重大基础研究项目(973计划)(No.2010CB226803);自然科学基金(No.51174015);"十二五"科技支撑计划(No.2012BAK09B07)

摘　　要：由于Surpac软件本身功能的限制,基于Surpac块体模型的三维数值建模技术在处理复杂矿山地质形体时存在费时、繁琐等缺陷。通过沿用八叉树层层细分的基本思路,研究了多个地质形体的网格批量自动划分技术,针对现有计算机处理能力在解析精度与模型尺度方面存在的矛盾,借用多重网格法概念探讨了网格局部加密和多尺度划分问题。并应用VC++开发了三维数值网格划分自动化软件平台,使复杂矿山地质形体的计算网格划分更加便捷高效,为开挖力学状态数值分析的自动化提供有力支持。该系统在玲珑金矿原始地应力反演数值建模中得到了实际应用,结果表明,该方法是实际可行和有效的。Due to the limit of Surpac software, the method for 3D numerical grid generation based on the Surpac software generally suffers for some deficiencies such as time-consuming and cumbersome. By adopting the basic idea of octree subdivision, the batch and automatic meshing technology of multiple geological body is investigated. To resolve the confliction issue arising when both the precision and the model scale need to be considered in computation, the grid local encryption and multi-scale partitioning methods are introduced and discussed based on the concept of multiple grid method. An automation software platform is developed for 3D numerical grid generation by using VC＋＋. The platform can be conveniently and effectively used to generate the numerical grids for the mining fields with complex geomorphology, providing a strong support for the automation of excavation numerical analysis. The new platform has been used in the in-situ stress inversion analysis of Linglong gold mine, showing its applicability and capability.

关 键 词：复杂地质形体 八叉树 数值网格 自动化 

分 类 号：O241[理学—计算数学]