深部综放工作面过陷落柱水害防治措施及应用

Control Measures of Mine Water Hazard During Deep Fully-mechanized Top Coal Caving Face Passing Collapse Column and Its Application

3下7112工作面为田陈煤矿重点综放工作面,其受3煤顶板砂岩水及侏罗系砾岩水威胁。2015年4月25日工作面揭露陷落柱,为避免该工作面过陷落柱时遭受水害威胁,通过矿井瞬变电磁探测和井下钻探等方法,查明富水情况,开展综合水害分析,并针对水害威胁制订了防治措施。结果表明:通过全面考虑制订的措施行之有效,对于确保工作面安全回采具有重大指导意义。

3 lower 7112 working face was key full-mechanized top coal caving face in Tianchen Coal Mine,it was threatened by 3 coal roof sandstone water and Jurassic conglomerates water. In April 25th of 2015 ,the working face revealed the collapse column. To avoid the face suffered water damage when it crossing collapse column, mine transient electromagnetic exploration and drilling were carried out to identify water enrichment conditions, comprehensive hazard was also analysed, and control measures was proposed to deal with water hazards. The results show that,the measures are effective,which plays an important guiding significance for ensuring the safety of the working face.