摘要
探讨了如何基于Midas/GTS来实现用FLAC3D建立复杂边坡模型。首先在Midas/GTS中建立几何模型和划分网格,然后根据两种软件的网格数据形式进行转换,把Midas/GTS的网格模型导入FLAC3D中。对于二维边坡问题,认为采用四边形单元比三角形单元的计算精度更高,在模型较为复杂的情况下建议在Midas/GTS中采用"四边形+三角形"的方式生成混合网格,然后导入FLAC3D中形成"brick+wedge"形式的混合网格进行分析,以保证计算精度。最后将上述建模方法应用于某边坡工程的稳定性分析,验证了该建模方法的可行性和实用性。
This paper studies how to build a complex slope model using FLAC3D based on Midas/GTS.Firstly,generates geometry model and meshes the model in Midas/GTS.Then transforms the meshing model into FLAC3D according to grid data formats of the two softwares.Particularly,for two dimensional slope problems,using quadrangle elements to mesh would obtain more precise computational results than using triangle elements.Therefore,＂quadrangle＋triangle＂manner of meshing is advised to generate the mixed grids in Midas/GTS when the slope model is more complex,and then transform them to FLAC3D in＂brick＋wedge＂manner to ensure the precision of analysis.At last this modeling method is applied to a slope engineering for stability analysis,and the results verify the feasibility of this method.
出处
《西北地震学报》
CSCD
北大核心
2011年第B08期261-265,共5页
Northwestern Seismological Journal
