摘要
既有地铁箱体顶板距西青道隧道结构底部最薄处只有32cm,施工面紧贴既有箱体。为保证隧道土方及结构施工过程中既有箱体变形小,地铁运营不受影响,采取了箱体加固、分条开挖和及时压载等一系列措施,使既有箱体变形控制在要求范围内,解决了运营地铁线路保护的难题。
The thinnest between Xiqingdao Tunnel and the metro box is 32 centimeters.The authors adopt some measures such as strengthening the box,striping excavation and loading in time to control the box deformation and protect the existing metro.Engineering practice shows that,the deformation is under control and the operation metro is safe.
出处
《施工技术》
CAS
北大核心
2012年第4期76-80,共5页
Construction Technology
关键词
隧道工程
运营隧道
变形
加固
tunnels
operation tunnels
deformation
strengthening
