富水砂层盾构接收技术  

Receiving Technology of Shield in Water-rich Sand Layer

作　　者：曹文 CAO Wen(China Railway Construction City Construction Investment Co.,Ltd.,Nanjing 210000,China)

机构地区：[1]中铁建城市建设投资有限公司,南京210000

出　　处：《价值工程》2021年第3期155-157,共3页Value Engineering

摘　　要：针对富水砂层盾构接收易发生渗漏、涌砂、安全风险大等问题。在大量工程实践基础上,总结出以控制地下水为重点、坚持预防为主的施工理念,形成端头加固、止水帷幕、环箍注浆及止水装置的富水地层盾构接收技术,牢筑三道止水防线。技术成果在多项依托工程中成功应用,确保了该类地层盾构接收安全和风险可控。In view of leakage,sand gushing and high safety risk in shield receiving in water rich sand layer,it is summarized that the control and prevention of groundwater are important.The shield acceptance technology is formed including end reinforcement,water stop curtain,hoop grouting and water stop device in water rich stratum,on the basis of a large number of engineering practice.The technical achievements have been successfully applied in a number of supporting projects to ensure the safety and risk control of shield receiving in this kind of stratum.

关 键 词：加固 止水帷幕 环箍 止水装置 

分 类 号：U455.43[建筑科学—桥梁与隧道工程]