关键词: 冲击地压, 综合指数法, 微震监测, 局部监测, 超前卸压, 钻孔卸压

Abstract: Abstract：In order to ensure the safe operation of No. 4 coal face in QINGGANGPING coal mine, taking 42108 fully mechanized top coal caving face in No. 2 mining area as the engineering background, the impact risk of the working face is evaluated based on the impact risk comprehensive index method, the idea of simultaneous monitoring of static load and dynamic load is put forward, and a regional local combined monitoring and early warning system of rock burst risk is established. The regional monitoring adopts microseismic monitoring system, Local detection adopts drilling cuttings method and electromagnetic radiation monitoring, so as to form "comprehensive analysis - real-time monitoring and early warning" from the time dimension; Form a monitoring and early warning technical scheme combining "regional prediction, local monitoring and point prediction" in the spatial dimension, and follow the "strong pressure relief" principle of rock burst prevention and control according to the analysis of impact risk factors and grade evaluation results of 42108 mining face, This paper puts forward the pre pressure relief and active danger relief scheme of 42108 mining working face, including pressure relief of large-diameter borehole in the upper part and pressure relief of large-diameter borehole in the bottom plate. Finally, the effect of the pressure relief scheme is tested by the drilling cuttings method, and the risk of rockburst in 42108 working face is eliminated. It is expected to provide reference for the prevention and control of coal mine rockburst under similar geological conditions.