Research on Rock Burst Laws and Prevention in Deep Hard Roof Coal Seam Mining

Based on the research of deep hard roof thick coal seam mining in Gucheng Coal Mine, this paper analyzes the inducement of 2103 working face rock burst accident, summarizes the law of mine rock burst, and concludes that the deep thick coal seam mining has more frequent occurrence of impact, the energy and sphere of influence is greater, also concludes that faults and overburden activities are the main factors in inducing rock burst. At the same time, it is pointed out that the time limit of deep thick coal seam discharge is short, and the basic pressure discharge measures and measures to replenish the pressure are proposed based on the actual conditions of the mine. With the blasting of large-diameter drilling and coal seam, and other technical measures, take corresponding pressure relief measures on the roadway and working face, drill method is used as point detection means to verify the effect. The field practice shows that the measure can effectively prevent and control the rock burst and reduce the occurrence of impact accidents.