摘要
在地铁隧道附近施工灌注桩、地下连续墙以及开挖基坑将改变隧道周围土体应力状态 ,使隧道发生变形和变位 ,直接影响隧道的使用功能和地铁的运行安全。该文结合上海市一个典型工程实例 ,分别对隧道沿线施工灌注桩 /地下连续墙、隧道旁侧开挖深基坑以及隧道上部开挖基坑引起的隧道变形及变位监测数据进行分析。结果表明 ,这 3种施工行为对隧道变形及变位的影响各有特点 ,在工程实践中应予以高度重视 。
The movement and deformation of tunnel, which influence directly serviceability of tunnel and even endanger the safety of metro, may be caused by the changes of stress condition of ground around metro tunnel owing to construction of substructure. A case history was presented in which construction of substructure was done around the twin tunnels of No.1 route of Shanghai metro. Based on the data of field measurement, the responses of tunnels due to the construction of cast in place concrete pile/diaphragm wall, deep foundation pit and shallow foundation pit are analyzed concretely, respectively. It makes know that responses of tunnel due to every construction condition mentioned above are different.
出处
《清华大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2000年第S1期79-82,共4页
Journal of Tsinghua University(Science and Technology)
关键词
灌注桩/地下连续墙
基坑
地铁隧道
施工
实测
cast in place concrete pile/diaphragm wall
foundation pit
metro tunnel
construction
field measurement
