摘要
为了探究苏州地铁3号线现代大道-娄江大道区间叠交隧道下穿既有地下水管线施工风险,采用数值分析方法模拟盾构隧道施工过程,分析盾构叠交隧道两次下穿对上方既有管线和周围土体的影响,提出一套叠交隧道下穿既有水管施工关键技术。研究表明地表沉降最大值为11.38 mm,水管竖向变形为14.06 mm,符合规范相关要求。
This paper studies the construction risk of the existing pipe lines nearby Suzhou metro line 3 Xian-Lou interval.The influence of the shield tunnel construction process on the existing pipe lines and surrounding soil was analyzed by numerical method,and a set of key construction techniques were proposed.The results show that the maximum vertical surface displacement is 11.38 mm,and the vertical displacement of the existing pipes is 14.06 mm,which meets the requirement.
作者
吴秀君
张振波
刘子余
耿浩明
田彪
WU Xiujun;ZHANG Zhenbo;LIU Ziyu;GENG Haoming;TIAN Biao(School of Safety Engineering and Emergency Management,Shijiazhuang Tiedao University,Shijiazhuang 050043,China)
出处
《低温建筑技术》
2022年第9期135-139,共5页
Low Temperature Architecture Technology
基金
大学生创新创业实践项目(S202110107082)
河北省高等学校科学技术研究项目资助(QN2021130)。
关键词
盾构
既有水管
叠交隧道
下穿施工
shield tunnel
existing pipeline
overlapped tunnel
beneath construction
