Research and application of microseismic monitoring technology in detecting the development of cracks in the roof and floor of coal mines
In order to eliminate the threat of water inrush from limestone on the floor of the mining face,a micro-seismic water hazard monitoring system was established by using the existing roadway of the Ⅱ 1-15010 working face.Through the collection and analysis of micro-seismic signals,the damage location,energy and possible affected area of micro-cracks were accurately calculated,and the micro-seismic signals caused by the fracture of the aquifer on the floor of the working face during mining were monitored in real-time,and the spatial distribution of micro-seismic events was analyzed,the impact of the floor mining damage zone on the limestone aquifer during the mining of the working face was fully and effectively monitored,realizing real-time monitoring and early warning of water hazards,provi-ding a basis for guiding the prevention and control of water hazards in the floor limestone of the working face,and ensuring the safe min-ing of the working face.
万方数据
维普
