And the curve about the relation between the abutment pressure concentrated coefficient and working face advanced distance is fitted according the simulating results.
采用FLAC-3D软件模拟了在煤层开采过程中采场支承压力的动态变化、依据数值模拟结果,拟合了支承压力集中系数与工作面推进距离的关系曲线。
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