巷道过断层破碎带注浆防治水技术研究

Research on Technology of Water Prevention and Control by Grouting for Mine Roadway Passed Through Broken Zone of Fault

针对大埋深高水压地质条件下回风斜巷穿过断层破碎带易发生突水的问题,对注浆防治水技术进行了研究。通过在赵固二矿试验分散制浆机、三级止水套管、复式固管法等新型注浆工艺,大幅提高了固管质量、钻孔安全性和注浆效果,提高了封堵导水通道的效率,以避免突水事故的发生。

It is easy to case water inrush while return air inclined roadway passing through broken zone of fault under the condition of large buried depth and high water pressure. Aiming at this problem, water control technology by grouting was studied in the paper. By testing some grouting technics, such as dispersed pulping machine, the three-stage solid tube flange structure,double pipe fixing, the quality of pipe fixing, drillhole safety and grouting effect were improved significantly, and has improved the efficiency of plugging water channel, so as to avoid the water inrush accidents.