临近基坑施工对地铁隧道影响的数值模拟分析  

Numerical Modeling Analysis on Deformation Effect of Metro Tunnels Due to Adjacent Excavation of Foundation Pit

作　　者：张治国[1] 张谢东[2] 王卫东[3] 

机构地区：[1]同济大学岩土及地下工程教育部重点实验室 [2]武汉理工大学交通学院,武汉430063 [3]华东建筑设计研究院有限公司,上海200002

出　　处：《武汉理工大学学报》2007年第11期93-97,共5页Journal of Wuhan University of Technology

基　　金：国家自然科学基金(10372075)

摘　　要：基坑开挖卸荷必然对临近软土地铁隧道产生影响,因此如何预测隧道变形并提出相应预防和保护措施显得尤为重要。结合上海地区一个临近地铁隧道的基坑工程,运用整体有限元分析方法对地铁隧道在基坑施工过程中所产生的影响进行弹塑性分析。分析结果与工程实测数据比较吻合,表明整体有限元方法可以较好地模拟此类工程问题,从而为实际工程的设计施工提供一定的理论和计算依据。Unloading of excavation of foundation pit will no doubt have influence on adjacent tunnels. Therefore it is important to predict the deformation of metro tunnels and propose the corresponding preventive and protective measurements. According to the project of deep excavations neighboring the tunnel in Shanghai, the elastoplastic analysis on deformation effect of metro tunnels due to adjacent excavation of foundation pit is carried out with integral finite element method. The results show good agreement with the field test data, it is showed that the integral finite element method can provide good simulation for this kind of engineering activity and provide convincing computing results for the design and construction.

关 键 词：地铁隧道 基坑开挖 数值模拟 

分 类 号：TB115[理学—数学]