动压沿空掘巷综合支护技术的探讨

The Discussion of the Synthetical Supporting Technology in the Gob-side Entry Subject to Dynamic Pressure

介绍了动压、破碎围岩巷道稳定原理及控制技术,并采用高强度锚杆支护和高水速凝材料注浆加固技术对潞安矿务局王庄矿5210工作面的回风平巷进行支护,从而提高动压沿空掘巷破碎区及塑性区围岩的强度,控制动压沿空掘巷围岩变形,为动压、破碎围岩沿空掘巷围岩控制方法提供理论依据。

This paper introduces the principle and controlling technology of bolting and grouting in the crushing roadway subject to dynamic pressure. And adopts high strength holt supporting and grouting reinforcing technology by high water and rapid concreting material to support the 5210 return airway in wangzhuang mine of the lu＇an mine bureau. Thus the intensity of surrounding rock in crushing and plastic zone of the gob-side entry subject to dynamic pressure is enhanced, and the distortion of the gob-side entry subject to dynamic pressure is controlled. Finally it provides the theoretic basis for the controlling method in the crushing gob-side entry subject to dynamic pressure.