摘要
基于北京地铁7号线达官营站及其所处特殊的富水砂卵石地层与脆弱的城市环境,围绕该车站洞桩法施工总体筹划、关键技术问题,介绍洞桩法施工的施工组织、工艺流程及采取的技术措施。北京地铁7号线达官营站洞桩法的成功实践表明,洞桩法因建设环境复杂而存在重大施工风险,但利用好现有施工技术、制定有效技术措施完全可规避重大风险,实现安全施工。
Based on water-saturated sand gravel stratum for Daguanying station of Beijing Subway Line No. 7 and fragile urban environment,this paper analyzed the overall planning,key technical problems for the construction of pile beam arch,introduced the construction organization,process,and technical measures applied. Engineering practice showed that pile beam arch because of complex environment has significant risks in construction,but the use of existing construction technology,developing effective technical measures can avoid serious risks to achieve safe construction.
出处
《施工技术》
CAS
北大核心
2015年第23期49-53,共5页
Construction Technology
关键词
地铁
洞桩法
暗挖
施工技术
subways
pile beam arch
subsurface excavation
construction
