By use of FLAC, the mining model of a working face in some mine was built and the dynamic change process of load on key strata before primary broken during mining was researched.

• 摘要利用FLAC数值模拟软件建立矿区具体工作面的开采模型，模拟研究了随着煤层的开采关键层初次破断前载荷的动态变化过程。