岩土工程学报2017，Vol.39Issue(z2)：157-161,5.DOI:10.11779/CJGE2017S2039
基础托换对基坑周边建筑物变形控制作用的三维有限元分析
Three-dimensional finite element analysis of effects of foundation underpinning on deformation control of existing buildings adjacent to a deep excavation
摘要
Abstract
The excavation of Dingding Bund is adjacent to an existing heritage architecture. As the pit is as deep as 20 m and the heritage architecture is only about 3 m away from the excavation, foundation underpinning is adopted in order to minimize the influences of the excavation on the buildings. To investigate the effects of foundation underpinning on the deformation control of the existing buildings, a series of three-dimensional finite element analyses are carried out by using Plaxis 3D. The soils are modeled by using the HS-small model. By comparing the field monitoring and numerical results, it is shown that the three-dimensional finite element analyses based on the HS-small model can give fairly reasonable predictions of the excavation deformations and the settlements of the adjacent building. The foundation underpinning can effectively reduce the settlements of the additional building induced by the adjacent excavation.关键词
基坑工程/基础托换/变形控制/三维有限元模拟/HS-small模型Key words
excavation/foundation underpinning/deformation control/3D FEM/HS-small model分类
建筑与水利引用本文复制引用
李靖,徐中华,王卫东..基础托换对基坑周边建筑物变形控制作用的三维有限元分析[J].岩土工程学报,2017,39(z2):157-161,5.基金项目
上海市浦江人才计划项目(15P51433500) （15P51433500）
