矿井巷道突水封堵技术的研究与应用

Research and application of water inrush plugging technology in mine roadway

矿井巷道突水区域一般为岩体破碎、裂隙发育、巷道及周边岩体抗压强度降低,封堵较困难,尤其是高水压大水量出水,如措施不当可能出现巷道顶帮开裂、底板鼓起、水量增加等情况,进一步加大水灾灾情。本文研究分析了挡水墙注浆堵水技术,并介绍了注浆堵水的初步方案和技术要点,使用该方法成功的封堵了宏阳煤矿东翼运输大巷出水。

The water inrush area of mine roadway is generally characterized by rock fragmentation,crack development,reduction of compressive strength of roadway and surrounding rock mass,and difficult plugging,especially high water pressure and large water yield.If improper measures are taken,roof cracking,floor heave and water increase may occur in the roadway and further increase the flood situation.This paper studies and analyzes the water plugging technology of water retaining wall grouting,and introduces the preliminary scheme and technical points of water plugging by grouting.The method is successfully used to plug the effluent of the Eastern Transport roadway ofHongyang CoalMine.