为防治桃山煤矿薄煤层开采过程中的冲击地压灾害,在统计已发生冲击地压事件基础上,对其发生特征及影响因素进行了分析,提出了电磁辐射法预测和深孔爆破、顶板注水治理冲击地压的防治技术。结果表明:桃山煤矿冲击地压多发的回采工作面上部和工作面上巷前方区域;工作面顶板及采空区大面积悬顶的断裂失稳,是冲击地压发生的主要原因;深孔爆破和顶板注水措施能降低或消除工作面冲击地压危险;电磁辐射法能有效预测冲击地压危险和检验爆破措施对冲击地压的解危效果。
In order to prevent the mine pressure bumping disaster occurred during the thin seam mining procedure in Taoshan Mine Based on the statistic pressure bumping accidents occurred,the occurred features and affected factors were analyzed and the prevention and control technologies of the electric magnetic radiation prediction,deep borehole blasting,roof water injection to control the mine pressure bumping were provided.The results showed that the top section of the coal mining face and the front area of the air income gateway with multi pressure bumping occurred in Taoshan Mine as well as the breaking and stability lost in the mining face roof and the large area suspended roof in the gateway and goaf would be the main cause to oc cur the mine pressure bumping.The deep borehole blasting and the roof water injection measures could reduce or eliminate the pressure bumping dangers of the coal mining face.The electric magnetic radiation method could be effectively to predict the pressure bumping danger and to check the blasting measure for the releasing results of the pressure bumping.