基于HYPERMESH复杂地质体的FLAC3D实体建模  

Modeling of Complex Geological Body in FLAC3D Based on HYPERMESH

作　　者：闫龙[1,2] 徐卫亚[1,2] 张强[1,2] 

机构地区：[1]河海大学岩土工程科学研究所,南京210098 [2]河海大学岩土力学与堤坝工程教育部重点实验室,南京210098

出　　处：《三峡大学学报（自然科学版）》2013年第3期40-44,共5页Journal of China Three Gorges University：Natural Sciences

基　　金：国家自然科学基金(11172090);国家重点基础研究发展计划(973项目)(2011CB013504)

摘　　要：FLAC3D采用显式有限差分法求解微分方程,在土木工程领域数值分析中具有明显的优越性,但FLAC3D在复杂三维地质模型建立方面存在不足.结合AUTOCAD和HYPERMESH软件构建复杂地质模型,充分利用HYPERMESH在划分网格、提高网格质量和连续性检查等优点进行前处理.采用FORTRAN语言编写的HYPERMESH_TO_FLAC3D接口程序把建立的复杂模型导入至FLAC3D进行分析计算,从而实现用FLAC3D解决问题时快速精准的建模目的.通过乌东德水电站地下洞室群三维建模实例检验了该方法的可行性和有效性,结果表明:基于HY-PERMESH软件建立复杂三维地质模型,并将其导入FLAC3D,结果令人满意,提高了建模效率,说明该方法在FLAC3D复杂模型建立方面具有一定的参考实用价值.FLAC3D use explicit finite difference method to solve the differential equation, which has an obvi- ous advantage over other methods in numerical analysis of civil engineering. But there is a shortage in FLAC3D to build three-dimensional geological model. Combining AUTOCAD with HYPERMESH software, complicated geological model was built. Making full use of the advantages of HYPERMESH in dividing mesh,developing mesh quality and checking the continuity of grids, preliminary treatment of model was made. An interface program of HYPERMESH-TO-FLAC3D was programed to import complex model into FLAC3D analysis. All these help to carry out the purpose of building the model more quickly and accurately. This method was checked viably and effectively by a 3D model example of underground cavern groups in Wud- ongde hydropower station. The results show that this method can develop the efficiency of building model greatly; and it can be very practical in building model by FLAC3D.

关 键 词：HYPERMESH FLAC3D 接口程序 三维模型 复杂地质体 

分 类 号：TD853.34[矿业工程—金属矿开采]