地层沉陷的数值模拟应用研究

Research On Numerical Simulation Of Stratum Subsidence

系统地总结了近些年来，应用有限元、离散元等数值分析方法研究开采引起地层沉陷的一些成果，用有限单元法分析了辽源矿务局西安煤矿立井保护煤柱开采引起的井筒变形和滑移，在断层与井筒交界处，井筒发生了错动，且周围明显呈现塑性破坏区；用离散单元法研究了地下开采引起地层沉陷的动态发展过程，对指导建（构）筑物下开采具有重要意义。并且表明数值模拟方法对分析含构造岩体地表沉陷是行之有效的。

This paper summed up systematically some achievements on application of numerical method, such as finite element method and discrete element method and so forth , to study the stratum subsidence owe to mining in recent years. The former is applied to study a shaft’s deformation and sliding of a protecting pillar in a panel of an upright well in Xi’an Coal Mining, Liaoyuan mining bureau. The result indicates that the shaft’s displacement occurs in the juncture of fault and shaft, at the same time a plastic failure area turns up apparently in its surrounding ; the latter is used to research the dynamic development processing of stratum subsidence resulting from mining, it is important to guide mining under structures and buildings. Research shows that the numerical simulating method is feasible and effective to analyze stratum subsidence containing rock mass with substructure.