用于FLAC^(3D)力学分析的矿床块段模型优化建模技术研究

Research on optimization ore block model technology for mechanics analysis of FLAC^(3D)

FLAC3D主要是模拟计算地质材料和岩土工程的力学行为,可以对矿山开采中产生的空区及地表移动问题进行数值模拟,并进行稳定性分析。但对于复杂的工程和地质条件,FLAC3D本身的前处理能力不强,建立的模型不能准确反映实际情况,要做大量简化。因此,本文探讨依据FLAC3D网格划分的原则和三维矿床软件SURPAC构建块段模型的方法,对用于力学分析的块段模型构建的步骤、原则等进行研究,使建立的模型得到优化,使其能够直接作为FLAC3D分析的前处理模型进行模拟计算,并结合弹性力学的原理验证了其正确性,同时用优化后的前处理模型结合云南某铜矿的实际进行力学分析,验证了该方法的可行性和准确性。

FLAC^3D mainly simulates geomaterials and geotechnical engineering, and can simulates numercally on empty area and surface movement of mines, also can has corresponding stability analysis. But FLAC^3D pre - process- ing ability was weak and the establishment of the model does not accurately reflect the actual situation in complex engineering and geological conditions, so need to be simplified. Therefore, based on the principle of FLAC^3D mesh and three - dimensional building blocks of deposits software SURPAC segment model approach, this study used for mechanical analysis of the block segment of model - building steps and principles, then will conduct a study to establish the optimized model, so that it can he used directly as FLAC^3D analysis of pre - treatment model simulation, and be verified correctness combined with the principle of elasticity. While its mechanical analysis pre - treatment with the optimized model ancl combined with the actual conduct of a copper mine in Yunnan, so it verifies the feasi- bility and accuracy of the method.