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针对公乌素地区16号煤层实际情况,运用正交试验方法和FLAC3D软件对顶煤破坏影响规律进行研究,得到对工作面控顶区内顶煤破坏影响因素的主次排序:埋深>煤单轴抗压强度>工作面长度>支架支撑力>煤厚。
According to the actual situation of No.16 coal seam in Gongwusu area, the orthogonal test method and FLAC3D software were used to study the influence law of top coal failure. The main order of influencing factors of top coal failure in the top controlling area was obtained: depth> coal Uniaxial compressive strength> Working face length> Bracket support> Coal thickness.