地应力异常条件下巷道围岩控制技术

Surrounding rock control technology under abnormal stress

为解决地应力异常区巷道变形、底鼓严重的问题,对常村煤矿南6采区的围岩地质力学参数进行测试,对原支护方案失效原因进行分析,在分析的基础上,提出全长预应力锚固+强力锚杆锚索组合支护系统。通过掘进期间矿压观测结果表明,新的支护体系有效控制了围岩变形与破坏。

In order to solve the roadway deformation and serious floor heave in abnormal stress area,geological and mechanical parameters of surrounding rock in No.6 mining area of Changcun Mine was tested and the failure reason was analyzed,pre-stress anchor bolt and rope support system was given,the result showed that the new support system controls the deformation and damage of the surrounding rock effectively by observing the mining pressure.