摘要
地铁车站基坑大多为超大型深基坑,是岩土工程施工中的重要关注点。以天津10号线新建屿东城站基坑为背景,分析穿越既有地铁隧道与已有车站相连接,同时处于极不良水文地质环境中的超大新建地铁站基坑建设中的主要施工风险。针对该工程中基坑为超大深基坑,基坑所处水文地质环境复杂及施工环境复杂等主要风险而导致的渗漏突涌事故,提出了采用RJP桩进行防水截水、分层降水法进行环保型降水等应对措施,同时针对多种可能出现概率型渗透事故,制订出应急措施,希望为类似工程提供借鉴。
Most of the pit pit of subway station is super large foundation pit,which is an important concern in geotechnical engineering construction. This paper introduces the main construction risk in the foundation pit construction of the super large new subway station,which is connected with the existing subway tunnel and connected with the existing station,and in the extremely poor hydrogeological environment. In this paper,the use of RJP pile for waterproof and water cut,stratified precipitation is proposed in this paper,which is based on the deep foundation pit of the project,the complicated hydrogeological environment of the foundation pit and the main risk of the construction environment. Law for environmental protection and other measures to deal with,and for a variety of possible probabilistic infiltration accident to develop a corresponding emergency measures,hope to provide reference for similar projects.
出处
《建筑技术开发》
2018年第4期30-32,共3页
Building Technology Development
关键词
地铁站基坑
RJP桩
施工风险
渗漏
防水
subway station pit
RJP pile
construction risk
leakage
waterproof
