摘要
通过钻孔查清井筒突遇的水害性质,采用井下扩散注浆充填方法,对掘进工作面前方围岩进行注浆帷幕,在巷道周围形成帷幕隔水体,隔断补给通道,确保矿井安全掘进,达到防治目的。
By drilling and ascertaining the wellbore caught water in nature,we begin our slipping casting in rockgrouting by underground diffusion method of excavation,forming around the tunnels the curtain across the water to cut off supply channels to ensure mine safety driving to achieve control objective.
出处
《中国锰业》
2017年第S1期8-10,共3页
China Manganese Industry
关键词
钻孔
地质灾害性质
扩散注浆
注浆帷幕
隔断
安全施工
Borehole
Geological disasters
Spread grout
Curtains for grouting
Partition
Safe construction
