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.
出处
《武汉理工大学学报》
EI
CAS
CSCD
北大核心
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)
关键词
地铁隧道
基坑开挖
数值模拟
metro tunnels
excavation of foundation pit
numerical modeling
