【摘要】 根据深圳地铁一期工程国贸—老街区间的地质资料及设计文件，对方案单洞双层隧洞施工开挖及对基础托换桩的影响，利用有限元对施工期的地表沉降及托换桩水平位移等力学行为进行了模拟和分析，对设计及施工具有参考价值。更多还原

【Abstract】 According to the geological data and the design document of first stage metro between Guomao and Old street in Shenzhen city, the simulation and the analysis of surface settlement and replacement pile horizontal displacement during the construction are carried out by the tree－ dimension nonlinear finite element method for the single tunnel of double layer. It is for reference to design and construction.更多还原