Analysis and prevention of impact hazard master control factors in irregular strip working faces based on microseismic monitoring
Irregular strip working face always have the potential for impact ground pressure,which is extremely destructive and a serious threat to coal mine safety.The No.4307 working face of Pengzhuang Coal Mine belongs to the irregular working face.In order to ensure safe recovery,the microseismic monitoring results of the working face in the fourth mining area were analyzed,and it was found that the main controlling factors for impact ground pressure in the No.4307 working face were structural stress,fault structure,and hard roof.The feasibility of preventing and controlling the main controlling factors was demonstrated,providing a basis for the development of anti im-pact work during the mining period of the working face.
irregular working surfaceimpact ground pressuremicroseismic monitoring
万方数据
维普
