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为了研究大平煤矿厚煤层在开采过程中的覆岩运移特征,以铁煤集团大平煤矿S2S9工作面综采工程为研究对象,利用数值模拟手段,对其工作面采动垂直应力场及位移场特征进行分析,得出顶板内岩层垂直应力等值线分布规律,岩层下沉特征及下沉量变化规律,揭示了工作面开采完成后地表下沉及水平移动特征。
In order to study the characteristics of overlying strata movement during the mining process of thick coal seam in Daping Coal Mine, taking the fully mechanized mining face of S2S9 working face in Daping Coal Mine of Iron Coal Group as the research object, the vertical stress field and displacement field Characteristics of the roof, the distribution law of the vertical stress contour of the rock strata in the roof, the subsidence characteristics of the rock strata and the variation of the subsidence are obtained, and the characteristics of surface subsidence and horizontal movement after the completion of the working face mining are revealed.