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针对海北煤矿急斜煤层的复杂条件 ,利用有限元模拟试验方法 ,对煤层巷道煤柱的留设和回收范围进行了计算模拟试验 ,探讨了煤层巷道的稳定性 ,所得结果可供工程参考
According to the complicated conditions of the steep coal seam in Haibei Coal Mine, the finite element simulation test method is used to calculate and simulate the scope of the coal pillar in the coal roadway. The stability of the coal tunnel is discussed, and the obtained results are available for engineering reference