超深明挖基坑基底开挖防涌水技术研究  

Study on the Technology of Preventing Inrush Water in the Excavation of Foundation Pit in Super Deep Ming Dynasty

作　　者：王冬冬 吴晓赞 Dongdong Wang;Xiaozan Wu(China RailwayTunnel Stock Co.,Ltd.,Zhengzhou,Henan,450003,China)

机构地区：[1]中铁隧道股份有限公司,中国·河南郑州450003

出　　处：《工程技术研究（百科）》2020年第2期123-124,共2页Engineering technology research

摘　　要：在超深明挖基坑开挖施工中,受地下水影响致基坑开挖施工难度增大。为提高基坑开挖稳定性,对后浇排水法、盲沟引水法、盲井排水法进行对比,最终选择了盲井排水法对基底涌水进行及时处理,有效降低了施工风险。In the construction of super-deep open-cut foundation pit,the difficulty of excavation is increased due to the influence of groundwater.In order to improve the stability of foundation pit excavation,the post-pouring drainage method,blind ditch water diversion method and blind shaft drainage method are compared,and the blind shaft drainage method is selected to treat the foundation water inrush in time,which effectivelyreduces the construction risk.

关 键 词：地铁深基坑 基坑开挖 注浆 盲井排水 防涌水 

分 类 号：TU7[建筑科学—建筑技术科学]