回风立井井筒破坏的修复技术研究

Study on repairing technique for collapse of return-air shaft

煤矿在用井筒因周边采动的影响,井筒井壁出现脱落、垮塌等,严重影响其使用功能。分析了回风立井井筒破坏的机理,介绍了修复技术和方案。

Due to the mining work around it,the shaft sidewall will fall off or collapse,which seriously affects its functions.In this paper,the return-air shaft damage mechanism is analyzed and the repairing technique and scheme are introduced.