哈密大南湖五号井进风立井壁后注浆堵水技术应用

Application of grouting and water plugging technology behind wall of air intake shaft of No.5 well of Dananhu,Hami

煤矿立井井筒长时间大量涌水,不仅降低井壁混凝土强度,而且腐蚀井筒设备,对井筒安全造成威胁。文章分析了井筒涌水量大的地质原因,制定了注浆堵水施工方案,并在现场进行了成功实施,取得了较好效果,井筒涌水量降至规范标准以下。

Once a large amount of water gushes from mine shaft for a long time,it not only reduces the strength of shaft lining concrete,but also corrodes the shaft equipment,threatening the safety of shaft.This paper analyzed the geological reasons for the large water inflow in the shaft,and formulated the construction scheme of grouting and blocking water.It has been successfully implemented in the field and achieved good results.The water inflow of the shaft is reduced to below the standard.