快速掘进巷道空顶区顶板稳定性分析及支护方案

Roof Stability Analysis and Supporting Scheme of Goaf Roof Area in Fast Driving Roadway

为解决1226工作面材料巷空顶区顶板易冒落及围岩变形量大的问题,通过对空顶区顶板稳定性进行分析,结合工作面具体情况对合理空顶距离和高性能锚杆的支护参数进行具体设计,并通过矿压观测对支护效果进行检验。结果表明:合理空顶距离为4m,支护方案实施后,有效地控制了巷道围岩的变形。

In order to solve the problem of easy caving and large deformation of surrounding rock in the roof area of the material roadway in the 1226 working face, the roof stability in the empty top area is analyzed, the supporting parameters of reasonable roof distance and high-performance anchor are specifically designed according to the specific conditions of the working face, and the supporting effect is checked by rock pressure observation. The results show that the reasonable spacing of roof is 4m, and the deformation of roadway surrounding rock is effectively controlled after the supporting scheme is implemented.