摘要
盾构隧道施工下穿既有隧道施工环境和地质条件复杂,施工存在重大风险。在总结以往盾构隧道下穿重要建构筑物施工经验教训的基础上,依据某市轨道交通4号线盾构近距离下穿既有隧道的案例全过程进行分析,提出针对主要风险因素提出相关盾构区间近距离下穿既有隧道的施工风险控制技术措施。
The construction environment and geological conditions of shield tunnels passing through existing tunnels are complicated,and there are significant risks in construction.On the basis of summing up the previous experience and lessons learned from the construction of shield tunnels passing through important structures,based on the analysis of the entire process of a city subway line 4 shield tunnels passing through an existing tunnel at a short distance,the main risk factors and the construction risk control measures are proposed.
作者
高益健
程兴
王少卿
GAO Yi-jian;CHENG Xing;WANG Shao-qing(China Design Group Co.,Ltd.,Nanjing 210014,China;JSTI,Nanjing 211100,China)
出处
《价值工程》
2020年第2期132-137,共6页
Value Engineering
关键词
轨道交通
盾构法施工
下穿既有隧道
监测数据异常
拱顶沉降
rail transit
shield construction
under-passing existing tunnel
abnormal monitoring data
dome settlement
