邻近双线盾构隧道的深基坑施工分析  

Analysis of deep pit construction adjacent to shield tunnel

作　　者：吴健 马永峰 钱明 周丁恒[2] 石湛[3] 

机构地区：[1]中石油天然气华东勘察设计研究院,山东青岛266071 [2]慕尼黑工业大学,德国慕尼黑81245 [3]同济大学土木工程学院,上海200092

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

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.

关 键 词：隧道工程 双线盾构 基坑施工 数值模拟 

分 类 号：U456.3[建筑科学—桥梁与隧道工程]