掘巷过断层冲击地压防治研究

Study on the Prevention and Control of the Fault-Crossing Rock Bust in Tunnel Digging

分析认为阳城煤矿3304工作面运输顺槽掘进过FD34断层期间,断层面向前0~20m范围内煤岩掘进过程中具有冲击危险性。为确保安全,巷道掘进过程中采用电磁辐射和钻屑法进行冲击危险监测预警,采用爆破卸压和钻孔卸压相结合的方式进行解危,保证了通过FD34断层施工的安全。

It is concluded that during the period of the conveyor gateway of 3304 working face of Yangcheng Coal Mine passing through the FD34 fault, there is an impact hazard in the process of coal rock tunneling in the first 0-20m range. In order to ensure safety, in the process of drivage, electromagnetic radiation and drilling cuttings impact risk monitoring are adopted to warn early, and in view of different dangerous state in the process of tunneling of conveyor gateway in 3304 working face, the blasting pressure relief, combined with the borehole pressure relief is used to relieve the danger, and to pass the FD34 fault.