The application of seismic monitoring technology in coal mine roof control

The abrupt releasing of the large area to pressure and accumulative elastic energy caused by sudden fracture of coal mine roof will cause a dynamic phenomenon, which will post severe threat to the safe production in mine such as rock burst, seismic monitoring system which can discriminate the Precursor information of the Catastrophic accident such as petro-graphic structure damaging and Fracture extension to predict the disastrous accident in mine roof by collecting, processing and dealing with Seismic signal is a combination of Seismic positioning monitoring, Computer technology, and Automatic control signal technology. The paper combined with the application of seismic monitoring system in Qianqiu Mine makes us find that we could more accurately forecast working face roof dynamic phenomenon and Sum up the working face roof to pressure precursors mode with big energy event frequency by processing Seismic signal of the mine´s 21141 fully-mechanized sublevel caving workface.