摘要
对新建回风井地面预注浆封堵地下水的设计方案、施工过程、堵水效果等进行了论述,工程实践表明,在矿区水文地质条件复杂的情况下,井筒开挖施工采用"下行式纯压注浆"地面预注浆技术,可有效隔断井筒与地下含水层之间的水力联系,为井筒开挖施工创造良好的条件,是治理矿区复杂含水层的有效技术方法之一。
Hydrological geological condition of newreturn-air well is complex, large amount of water gushing effecting shaft excavation is one of the major adverse factors. The design scheme of surface pre-grouting of the new return-air well in groundwater, construction process and water plugging effect are discussed in this paper. Engineering practice shows that the surface pre-grouting technology is one of the effective methods to control the complex aquifer in the mining area.
出处
《资源环境与工程》
2015年第6期986-990,1021,共6页
Resources Environment & Engineering
关键词
地面预注浆
帷幕注浆止水
回风井
surface pre-grouting
water stop of curtain grouting, return-air well
