倾斜煤层软岩巷道由于围岩破碎和受倾角的影响,地应力比较复杂,其围岩稳定性控制比较困难,利用三维非线性差分程序进行数值计算,并与现场监测结果相互验证,分析得出倾斜煤层软岩巷道破碎围岩非对称变形规律及其形成机理.实施锚(索)网联合支护,利用锚索将破碎岩体与深处稳定岩体承接起来与锚杆共同作用,形成“压缩拱”,充分发挥锚网—围岩整体力学效应,控制非对称破坏和变形,提高岩体稳定性.
For the broken surrounding rock, high inclined and complicated ground stress, the stability control of surrounding rock is dif- ficult for the soft rock roadway in inclined coal seam. By numerical calculation of three-dimensional nonlinear differential program and field monitoring, the asymmetric deformation law and formation mechanism of the soft rock roadway in inclined coal seam was analyzed. Using bolt-cable-mesh combined support can play anchor-rock overall mechanical effects, control the asymmetrical deformation and dis- tortion and enhance the rock mass stability.