基于GOCAD的FLAC3D前处理方法研究

Research on Pretreatment Method of FLAC3D Based on GOCAD

由于GOCAD软件具有强大的建模功能,能方便快捷地建立出复杂的地质体,但未能提供数值模拟。FLAC3D只能靠键入式输入命令进行建模,工程量大、易出错,但其强大的数值分析功能刚好弥补GOCAD的不足。GOCAD导出的模型文件格式不能直接被FLAC3D软件识别,要用程序语言编写从GOCAD转换到FLAC3D的接口程序,从而实现二者的转换。利用Matlab以及C++语言来编写转换接口程序,完成二者六面体网格信息的转换,从而实现三维地质模型在FLAC3D的快速简便建模。该方法简单实用,被广泛应用于地质工程、地球物理勘探、矿业开发、水利工程中。

Because GOCAD software has powerful modeling function,it can quickly and easily establish complex geological bodies,but it fails to provide numerical simulation.FLAC3D can only be modeled by typing input commands,which is large and error-prone,but its powerful numerical analysis function just makes up for the deficiency of GOCAD.The format of the model file exported from GOCAD cannot be directly identified by FLAC3D software.The interface program from GOCAD to FLAC3D should be written in programming language to realize the conversion between the two.Using Matlab and C++language to write the conversion interface program,complete the conversion of the two hexahedral grid information,so as to realize the rapid and simple modeling of three-dimensional geological model in FLAC3D.The method is simple and practical,widely used in geological engineering,geophysical exploration,mining development,water conservancy projects.