西藏南路越江隧道工程叠交隧道影响分析  

Analysis of Effect on Existing Metro Tunnel Due to the Construction of South Xizang Rd. Tunnel under It

作　　者：姜弘[1] 李庭平[1] 潘国庆 

机构地区：[1]上海交通大学土木工程系,上海200240 [2]上海市城市建设设计研究院,上海200125

出　　处：《中国市政工程》2007年第3期62-63,共2页China Municipal Engineering

摘　　要：结合上海市西藏南路越江隧道工程实际,采用有限元模拟的方法分析了叠交隧道近距离穿越对既有隧道以及地表变形的影响。结果表明,为减小新建隧道施工对既有隧道以及地表变形的影响,须将地层损失率控制在1%以内为宜。This paper presents the effect on existing metro tunnel(M8) due to South Xizang Rd.shield tunnel construction under M8 tunnel.Three-dimensional finite element method was employed to analyze the deformation and inner forces of M8 tunnel.The results show that volume loss ratio should be controlled within 1% in order to mitigate the stress and deformation in M8 tunnel lining.

关 键 词：泥水盾构 叠交隧道 有限元法 

分 类 号：U459.5[建筑科学—桥梁与隧道工程]