岩土工程学报2025，Vol.47Issue(z2)：139-144,6.DOI:10.11779/CJGE2025S20017
软土地区超深超厚地连墙施工的实测与模拟研究
Field measurement and simulation on construction of ultra-deep and ultra-thick diaphragm wall in soft soil areas
摘要
Abstract
This paper takes the construction of diaphragm wall in a five-storey ultra-deep underground metro interchange station in Tianjin as the research object,and analyses the impact of 69.5 m ultra-deep and ultra-thick diaphragm wall trenching construction in soft soil area on the surrounding environment through the measured data and numerical simulation of finite element.The results show that the trenching depth and wall thickness have a significant effect on the surface settlement:the larger the trenching depth is,the overall trend of surface settlement increases,but the growth rate slows down after the depth exceeds 27 m;the increase of wall thickness leads to a steeper settlement curve,and the amount of settlement and the scope of influence expand.Trough wall reinforcement effectively reduces surface settlement,resulting in a smoother settlement curve and a reduction in the width and depth of the trough.The research results provide a theoretical basis and reference for the construction of ultra-deep and ultra-thick ground connecting wall in soft soil areas.关键词
软土地区/超深超厚/地下连续墙/泥浆重度/槽壁加固Key words
soft soil area/ultra-deep and ultra-thick/diaphragm wall/mud heaviness/trench wall reinforcement分类
建筑与水利引用本文复制引用
刘景锦,谢文嘉,栗晴瀚,甄洁,王昌,陈应举,张中杰,程雪松..软土地区超深超厚地连墙施工的实测与模拟研究[J].岩土工程学报,2025,47(z2):139-144,6.基金项目
国家重点研发计划项目(2023YFC3009300) （2023YFC3009300）
中国铁建股份有限公司科研计划课题(2020-B07) （2020-B07）
