回采巷道掘进过断层技术研究

Study on the technology of mining roadway driving through fault

新设煤矿32602运输巷掘进遇到F27断层,在断层影响范围内巷道顶板破碎,制约巷道掘进安全及掘进效率。为了解决巷道掘进面临难题,提出采用超前锚杆+超前注浆方式,对断层影响范围内的破碎岩层进行控制,提高了巷道掘进安全系数,确保了巷道掘进过断层安全。

F27 fault encountered during driving of 32602 transport roadway in Xinshe coal mine,the roof of roadway is broken within the influence range of fault,restricting the safety and efficiency of roadway excavation.In order to solve the problem of roadway excavation,the method of advanced anchor bolt and advanced grouting is proposed,to control the broken strata within the influence range of the fault,the safety factor of roadway driving is improved and the safety of roadway driving through fault is ensured.