立井井底水窝预注浆防治水设计与施工  

Design and Construction of Water Prevention and Control by Pre Grouting in Bottom Water Pit of Vertical Shaft

作　　者：王云潮 Wang Yunchao(Shanxi Hongxia First Construction Co.,Ltd.,Shanxi Yangquan 045000)

机构地区：[1]山西宏厦第一建设有限责任公司,山西阳泉045000

出　　处：《山东煤炭科技》2021年第7期155-157,173,共4页Shandong Coal Science and Technology

摘　　要：庙口煤矿所属井底水窝施工时突发涌水,根据现场实际涌水情况对工作面涌水位置采用浇筑水泥灰止浆垫进行初步封堵,在水泥灰凝结7 d的时候进行排水,然后往止浆垫上重新浇筑商品混凝土,同时进行钻探注浆,对井底水窝工作面涌水进行了有效封堵,有效地解决了井底水窝作业时出现的涌水问题,降低了整个工程的成本,进一步提高了整个矿井的收益。During the construction of the water hole at the bottom of the mine in Miaokou Coal Mine,water gushed suddenly,According to the actual situation of water gushing,the water gushing position of the working face is initially blocked by pouring cement mortar stop pad.When the cement mortar is set for 7 days,the water is drained,and then commercial concrete is poured on the stop pad again.At the same time,drilling and grouting are carried out to effectively block the water gushing of the working face.It not only effectively solves the problem of water gushing in the pit operation,but also reduces the cost of the whole project and further improves the income of the whole mine.

关 键 词：混凝土 井筒淹井 止浆垫 防治水 

分 类 号：TD745[矿业工程—矿井通风与安全]