长江科学院院报2012，Vol.29Issue(1)：74-78,5.
深基坑变形特性的离心模型试验、数值计算与现场实测对比分析
Comparison of Deformation Behavior of Deep Excavation among Centrifuge Model Test, Numerical Analysis and In-situ Monitoring
摘要
Abstract
A suitable centrifuge model is built by simplifying the deep foundation pit excavation project near the metro in Shanghai. Deformations of the deep excavation project adjacent to the metro tunnels are investigated through centrifuge model test, and is meanwhile simulated by 3D finite element numerical simulation, in which the constitutive relationship of soils are described with the HSS model which is based on small-strain stiffness. The results are compared with those of the in-situ monitoring data. It is found that results of the three methods are consistent in qualitative rules but still differ greatly in the quantity, and the 3D numerical simulation using HSS model could better simulate the deformation of deep foundation pit, especially the deformation of diaphragm walls.关键词
深基坑/变形特性/离心模型试验/三维有限元/现场实测Key words
deep foundation pit/ deformation behavior/ centrifuge model tests/ 3D FEM/ in-situ monitoring分类
建筑与水利引用本文复制引用
梁发云,褚峰,宋著,李永盛..深基坑变形特性的离心模型试验、数值计算与现场实测对比分析[J].长江科学院院报,2012,29(1):74-78,5.基金项目
上海市科技攻关计划项目资助(09231200900) （09231200900）
