Comprehensive Prevention and Control Technology of Mine Pressure Bumping in Deep Mine

In order to get the outburst proneness of No.2 and No.4 coal seams and their roofs rock seams of Suncun colliery, outburst proneness experiments and s oaking mechanical experiments were taken to analyze the every outburst proneness index of coal and rock samples and the strength change after soaking.The results s how that they belong to medium bump proneness.And the strength of coal and rock samples could decrease obviously after seven days.In order to ensure safety minin g, comprehensive control techniques of basic measures, prediction measures, precaution measures and protection measures were taken and the result of rockburst con tral in the process of mining in 2423 coal mining face and driving in 4422 headentry make clear that in 2423 tailentry the coal fines quantities of dilholes in the deep of 07 m vary in the range 0.77 .3 kg/m and those all are less than the unsafe value.The coal fines quantities of the drillholes in 4422 headentry in the range of 3 m where is from the entrance vary a ltte and the values are less than the unsafe value.