龙泉煤矿4301工作面水害治理技术及成果分析

Water hazard control technology and achievement analysis of 4301 working face in Longquan Coal Mine

基于4301工作面回采期间顶板出水量大,回采难度大等技术难题,严重制约着工作面安全高效生产,通过分析工作面出水原因,提出了钻探注浆堵水技术,实施后工作面出水量由原来的180m^(3)/h降低至30m^(3)/h左右,注浆堵水率达82%,取得了显著应用成效。

Based on the technical problems such as large roof water yield and difficult mining during the mining of 4301 working face,which seriously restrict the safe and efficient mining of the working face,this paper analyzes the reasons for the water yield of the working face,and puts forward the drilling grouting water blocking technology.According to the actual application effect,the water yield of the working face after the grouting water blocking technology in the mining area is reduced from the original 180m^(3)/h to about 30m^(3)/h,and the water blocking rate of grouting is 82%,which has achieved remarkable application results.