摘要
为研究高孔隙水压地层基坑降水施工的变形及受力特征,采用有限元软件对深基坑的施工降水和开挖过程进行模拟,建立考虑地层—围护结构—水的基坑三维施工模型。结果表明:基坑降水施工的变形及围护结构的内力均满足安全要求;设计方案的内支撑结构对基坑变形有明显的控制作用;降水过程会对围堰结构的变形有明显影响。
In order to study the deformation and stress characteristics of foundation pit dewatering construction in high pore water pressure stratum,the finite element software was used to simulate the construction and precipitation process of deep foundation pit,and the three-dimensional construction of foundation pit considering stratum-enclosure structure-water was established model.The results show that the deformation of the foundation pit precipitation construction and the internal force of the enclosure structure meet the safety requirements,the internal support structure of the design scheme has a significant control effect on the deformation of the foundation pit,the precipitation process will obviously affect the deformation of the cofferdam structure.
作者
程学昌
Cheng Xuechang(Guangzhou Metro Group Co.,Ltd.,Guangzhou 510330,China)
出处
《山西建筑》
2021年第1期68-69,74,共3页
Shanxi Architecture
关键词
基坑开挖
降水施工
变形特征
围护结构
excavation of foundation pit
dewatering construction
deformation characteristics
envelope structure
作者简介
程学昌(1975-),男,高级工程师。
