关闭小煤矿突水灾害隐蔽通道快速探查与治理技术

Quick exploration and control technology of hidden channel of water outburst damage in closed small coal mine

针对关闭小煤矿开采区域发生的突水灾害,采用物探、微震、钻探、奥灰水位网分析等方法查找到突水通道,并利用帷幕和灌注骨料相结合手段、多层交叉加固技术彻底封堵了突水通道和突水水源,矿井总体涌水量相比以往同期减少了62%,大幅减少了矿井排水费用,也保护了奥灰水资源,为矿井安全生产提供了保障。

In view of the water outburst damage in the closed small coal mine mining area,the water outburst channel was found by means of geophysical detection,microseism,drilling and Ordovician limestone water level network analysis.The water outburst channel and water outburst source were completely blocked by the combination of curtain and grouting aggregate and multi-layer cross reinforcement technology,compared with the same period in the past,the overall water inflow of the mine is reduced by 62%,greatly reduced the cost of mine drainage,protected the water resources of Ordovician limestonewhich provided a guarantee for the safe production of the mine.