潞宁煤业掘进巷道顶板富水区域探查与注浆加固技术

Exploration and Grouting Reinforcement Technology of Rich Water Area in Roof of Tunneling Roadway in Lu’ning Coal Industry

针对潞宁煤业22117工作面回采巷道掘进过富水区域时可能受水害影响的问题,采用定向长距离探放水钻孔探查了掘进区域顶板的异常富水区域,并根据定向钻孔探查结果,对围岩进行注浆加固改造,消除了围岩的水害影响,保证了巷道的安全高效掘进。

In view of the problem that the mining roadway in the 22117 working face of Luning Coal Industry may be affected by water damage when driving through the rich water area,the abnormal rich water area of the roof of the driving area is explored by directional long-distance water discharge boreholes,and according to the exploration results of directional drilling,the surrounding rock is reinforced and reformed by grouting,which eliminates the influence of water damage on the surrounding rock and ensures the safe and efficient excavation of the roadway.