天津地铁浅埋暗挖隧道地表变形分析  

Analysis on Ground Surface Deformation Induced by Undercutting under Shallow Overburden in Tianjin Metro

作　　者：贾建波[1] 焦苍[1] 范鹏[1] 

机构地区：[1]中铁隧道集团有限公司,河南洛阳471009

出　　处：《隧道建设》2006年第1期18-20,24,共4页Tunnel Construction

摘　　要：地铁隧道施工扰动地层,必然造成相应的地层变形。通过对天津地铁1期工程营口道车站中软岩、富水地层中采用浅埋暗挖法施工,并对地表位移的现场监测和分析,得到了浅埋暗挖法修建隧道地表运动的基本规律,在此基础上提出了控制地层变形的技术措施,在天津地铁1期工程施工中得到了充分的利用并且取得了良好的效果。Due to the disturbance to the ground induced by construction of Metro tunnels, ground deformations occur inevitably. On basis of the undercutting construction under shallow overburden of Yingkoudao station of phase 1 of Tianjin Metro located in soft and water-rich ground and the analysis on the results of the monitoring of the ground surface displacement, the basic pattern of the ground surface displacement induced by undercutting under shallow overburden is obtained. Furthermore, technical measures to control the ground deformations are recommended and fully applied in the construction of phase 1 works of Tianjin Metro and good effects are achieved.

关 键 词：地铁隧道 浅埋暗挖法 地表沉降 沉降槽 

分 类 号：TU455[建筑科学—岩土工程] U231.3[建筑科学—土工工程]