论文部分内容阅读
为解决清水营煤矿“三软”煤层110202工作面辅运巷难以支护的问题,通过分析工作面巷道来压情况和巷道破坏的主要因素,认为围岩工程力学性质差和支护与围岩不适应是导致工作面巷道严重破坏的主要原因。根据巷道支护与围岩的耦合性原理,应用理论计算和FLAC3D数值模拟方法,设计了锚网索+钢支架联合支护的综合治理方案。
In order to solve the problem that the tunnel of 110202 working face in Qingshuiying coal mine is difficult to support, the author analyzed the main factors of roadway pressure and roadway destruction, and considered the mechanical property of surrounding rock is poor and the relationship between supporting and Incompatibility of surrounding rock is the main reason leading to serious damage to the roadway. According to the coupling principle of roadway support and surrounding rock, the comprehensive control scheme of anchor net + steel bracket joint support is designed by theoretical calculation and FLAC3D numerical simulation method.