摘要
Abstract
In order to study the deformation characteristics of the surrounding pile and pile raft foundation,this paper takes a subway station as an example and establishes a numerical model by using Plaxis 2D finite element software to systematically analyze the influence of foundation pit excavation on the deformation of adjacent buildings.The results show that the settlement of the building decreases with the increase of the distance between the structure and the retaining pile.When the excavation depth is 8 m,the spacing is from 2.01 m to 20.12 m,and the settlement is reduced by 90%.With the increase of pile depth,the horizontal displacement of pile decreases continuously.The closer the removal support is to the top of the foundation pit,the more obvious the horizontal displacement is.It is recommended to strengthen the reinforcement measures during the replacement stage to reduce the impact on the surrounding buildings.关键词
基坑开挖/Plaxis 2D/有限元模拟/水平位移Key words
Foundation pit excavation/Plaxis 2D/Finite element simulation/Horizontal displacement分类
建筑与水利
