基坑开挖对邻近隧道变形控制研究  

Study on Deformation Control of Adjacent Tunnel by Foundation Excavation

作　　者：夏为民 裘国荣 XIA Weimin;QIU Guorong(Zhejiang Baoye Construction Group Co.,Ltd.,Shaoxing,Zhejiang312028,China)

机构地区：[1]浙江宝业建设集团有限公司,浙江绍兴312028

出　　处：《施工技术（中英文）》2023年第10期77-82,共6页Construction Technology

摘　　要：某基坑工程地下3层,周边邻近公路隧道,开挖到地下1层深度时,发生漏水,隧道管理部门要求提高隧道变形控制标准。现场采取加筋垫层、护壁挡墙、支撑后拆等技术措施,通过三维数值模拟进行可行性分析,有效控制了隧道变形,同时保证了基坑和隧道的安全。A foundation excavation project with 3 underground layers and a highway tunnel adjacent to the surrounding area was excavated to a depth of 1 underground layer when water leakage occurred,and the tunnel management requested to raise the tunnel deformation control standard.Technical measures such as reinforced cushion,retaining wall and support delayed demolition were adopted on site,and feasibility analysis was conducted through 3D numerical simulation,which effectively controlled the tunnel deformation and ensured the safety of the foundation excavation and tunnel at the same time.

关 键 词：隧道 变形控制 加筋垫层 护壁挡墙 支撑后拆 

分 类 号：U231[交通运输工程—道路与铁道工程]