市政技术2024，Vol.42Issue(2)：147-154,8.DOI:10.19922/j.1009-7767.2024.02.147
顶管工作井近接挡土墙施工的变形监测及数值模拟研究
Study on Deformation Monitoring and Numerical Simulation of the Construction of Pipe Jacking Working Well Adjacent Retaining Wall
肖春 1张鑫 2李旭彪 2钟家强2
作者信息
- 1. 中恒工程设计院有限公司,四川成都 610017
- 2. 中国市政工程西北设计研究院有限公司,甘肃兰州 730000
- 折叠
摘要
Abstract
Municipal pipe jacking projects are important parts of national infrastructure construction.In order to en-sure the construction safety of pipe jacking working well adjacent to the retaining wall section,the construction of a same project in Chengdu was taken as an example.The monitoring data on the displacement of the pit and each point of the retaining wall were obtained on site,and then the displacement changes generated in the course of the con-struction of pipe jacking working well were analyzed.The result shows that the impact of pipe jacking working well on the overall stability of the retaining wall structure is relatively smaller,and its structural displacement variables are all within the allowable design.At the same time,a 3D model of the pipe jacking working well was established by Midas GTS NX to verify the influence of the pipe jacking working well construction on the soil around the pit,the well wall and the retaining wall.The result shows that the displacement results obtained by numerical simulation ba-sically matched with the monitoring data on-site,which indicates that the numerical simulation can simulate the ac-tual construction process.The study can provide reference for similar proximity projects.关键词
顶管工作井/挡土墙/变形监测/数值模拟Key words
pipe jacking working well/retaining wall/deformation monitoring/numerical simulation分类
建筑与水利引用本文复制引用
肖春,张鑫,李旭彪,钟家强..顶管工作井近接挡土墙施工的变形监测及数值模拟研究[J].市政技术,2024,42(2):147-154,8.
