综放面末采期间冲击地压防治技术

Prevention and Control Technology of coal bumps during the end of fully-mechanized caving mining face

基于常村煤矿21150综放工作面末采期间冲击地压事件频发,在21150末采期间采取微震监测、钻孔应力监测与矿压监测预警,实施煤层注水、大直径钻孔卸压、卸压爆破等解危措施,并配合个体防护、物料捆绑及限员把口等防护措施,降低煤体应力集中程度,减少冲击地压事故发生,保证了矿井安全生产。

The coal bumps happened frequently during the end of 21150 fully-mechanized caving mining face of ChangCun colliery. The microseismic monitoring, borehole stress monitoring and mine pressure monitoring are used in Comprehensive monitoring and early warning for coal bumps. The seam water injection, pressure releasing blasting and pressure releasing drilling are ued in Removing the risk of coal bumps. The the personnel protection, binding material and equipment and limiting access to 21150 face are used in Safety protection measures.These effective measures can Reduce the stress concentration degree and prevent the coal bumps accident .The mine safety production could be ensured.