关键词: FLAC^3D, SURPAC, 前处理, 块段模型, 优化

Abstract: FLAC^3D is mainly the mechanics behaviors of simulating the geo-materials and geotechnical engineering, and can realize a numerical simulation on movement of empty area and surface in mines, and the corresponding stability analysis. But the pre-processing ability of FLAC^3D was weak and the model established does not accurately reflect the actual situation in complex engineering and geological conditions. So it should be simplified. Therefore, based on the principle of FLAC^3D mesh and three-dimensional building blocks of deposits Software SURPAC segment model approach, the block segment of model-building steps and principle for mechanical analysis are studied so as to optimize the model. It can be directly used as pre-treatment model simulation of FLAC^3D analysis, and its correctness be verified combining with the principle of elasticity. Meanwhile, the mechanical analysis by the optimized pre-treatment model combining with the actual situation of a copper mine in Yunnan verifies the feasibility and accuracy of the method.

Key words: FLAC^3D, SURPAC, Pre-treatment, Block model, Optimization