回采期间冲击危险监测方案实践

Practice of Shock Hazard Monitoring Scheme During Mining

针对挖金湾煤矿工作面回采期间存在的冲击危险,采取矿压观测、微震、在线应力监测和钻屑法检测等主要手段,实时掌握冲击危险动态,并针对监测到的冲击危险提出卸压解危方案,该方案主要采用煤体大直径钻孔卸压技术和煤体钻孔爆破卸压技术。

In view of the impact risk existing in the working face of Wajinwan coal mine during mining,the main means such as ground pressure observation,microseismic,on-line stress monitoring and drilling cuttings method detection are adopted to grasp the dynamic of the impact risk in real time,and the pressure relief scheme for the monitored impact risk is proposed.The pressure relief scheme mainly adopts the coal large-diameter drilling pressure relief technology and the coal drilling blasting pressure relief technology.