煤矿井下导水断层注浆堵水改造研究

Study on Grouting and Water Shutoff Modification of Underground Water-conducting Faults in Coal Mines

煤矿断层水害的发生往往会给煤矿造成巨大的损失。以常村煤矿为研究对象,针对井下导水断层注浆堵水改造作业进行实践应用研究,采取井下钻孔预注浆的方式加固井下导水断层破碎带,以有效增强巷道穿过断层部位围岩的强度。与地面注浆相比,井下钻孔预注浆的方式具有工期短、成本低、施工方便、便于管理、效果明显的优点。

The occurrence of fault water hazards in coal mines often causes huge losses to coal mines.Taking Changcun Coal Mine as the research object,this paper carried out practical application research on grouting and water shutoff of underground water-conducting faults,and reinforced underground water-conducting faults fracture zone by pre-grouting underground boreholes,so as to effectively enhance the strength of roadway passing through the surrounding rock at the fault site.Compared with ground grouting,underground borehole pre-grouting has the advantages of short construction period,low cost,convenient construction,easy management and obvious effect.