松软破碎巷道顶板失稳机制及围岩控制技术

Soft and broken roadway roof stability-losing mechanism and surrounding rock control technology

针对滑动构造带特殊地质条件下巷道围岩稳定性差的情况,以翼城山凹煤业回风大巷为研究对象,采用现场观测、数值模拟等方法研究了滑动破碎围岩巷道变形特征及支护技术问题,提出不对称底角锚杆联合锚索支护技术,结果表明巷道围岩非对称变形得到很好的控制,增强了巷道的整体稳定性。

Based on poor stability of roadway surrounding rock under special geological condition in sliding structure zone,Yicheng Shan＇ao Mining Industry return air roadway was taken as example, observation on the site, numerical simulation were adopted to study roadway deformation features and support technology in sliding broken surrounding rock, asymmetric base angle joint anchor cable anchor supporting technology was put forward, the result showed that roadway asymmetric deformation got good control, improving the whole stability of roadway.