With the increase of coal mining depth,the risk of coal and gas outburst increases significantly,which seriously threatens the safety of coal mine production. Factors such as stress concentration and coal structure failure during coal roadway excavation are analyzed. The application of acoustic emission,microseismic and acoustic transmission monitoring technologies in outburst risk prediction is discussed. A multi-parameter monitoring scheme is proposed. The research shows that the multi-parameter monitoring technology can evaluate the outburst risk of coal roadway in real time and accurately,which provides effective technical support for the safe and efficient mining of coal mine.
维普
万方数据