极近距离煤层超前探梁注浆加固技术

Very Close Distance Coal Seam Front Cantilever Grouting Reinforcement Technique

白皎煤矿在极近距离煤层群下部煤层巷道掘进过程中,首次采用了超前探梁注浆加固技术,结果表明:该技术实现了对巷道顶板的加固作用,解决了极近距离煤层群下部煤层掘进过程中巷道顶板控制难度大的问题。

Baijiao coal mine in the very short distance coal seams laneway lower coal seam in the process,the front cantilever grouting reinforcement technology,results show that: the technology can realize the reinforcement effect of the tunnel roof,has solved the difficult problems of close range tunnel roof control the lower coal seam group in the process of excavation.