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矿山压力和煤层物理力学性质是发生冲击地压的必要条件,再受工艺过程等触发因素影响,即引起冲击地压。文章总结了龙凤矿冲击地压发生的一般规律。根据力学性质试验测定煤层冲击倾向,用钻屑法监测采掘引起的应力集中,从而判断冲击危险程度。煤层含水量的变化也是预测冲击危险的指标。此外并利用动态仪、地音仪等监测手段进行综合判定。防治方法上重点研究了煤层压力注水和卸压爆破。
Mine pressure and the physical and mechanical properties of coal seam is a necessary condition for rock burst, and then by the triggering factors such as process impact, that is caused by rock burst. The article summarizes the general rules of the impact of the dragon and phoenix mine ground pressure. According to the test of mechanical properties, the impact tendency of coal seam is measured, and the stress concentration caused by excavation is monitored by drill cuttings method to judge the impact risk. Changes in coal seam moisture content are also indicators of the risk of impact. In addition, the use of dynamic instruments, such as monitoring instruments to make a comprehensive determination. Prevention and treatment methods focused on the pressure of coal injection and pressure relief blasting.