摘要
以上海某邻近双线盾构隧道的基坑工程为背景,运用有限元方法计算,模拟基坑开挖的不同阶段,分析了不同工况下基坑变形、受力及对盾构隧道的影响,并对不同施工方式进行了对比分析.分析结果表明:施工内部框架结构有利于控制盾构隧道上浮和受力;支撑的拆除对坑底及下方隧道的变形和受力影响较小.研究结论可为类似工程提供借鉴与参考.
Based on the engineering practice of deep pit construction, the application of finite element method to simulate different construction stage of deep pit construction is presented. The deformation and stress of foundation pit and the affection of shield tunnels caused by pit construction are analyzed in details. Some conclusions have been drawn. The construction of internal frame structure is significant to the control of shield tunnel deformation and stress. The dismantling of support does not have great influence on the pit and deformation and stress of tunnel. The experience and conclusions presented can be referred in the design, construction and site monitoring of similar tunnels.
出处
《交通科学与工程》
2010年第3期36-40,45,共6页
Journal of Transport Science and Engineering
关键词
隧道工程
双线盾构
基坑施工
数值模拟
tunnel engineering
shield tunnel
pit construction
numerical simulation
作者简介
吴健（1979-），男，中石油天然气华东勘察设计研究院工程师
