摘要
建立二维计算模型,利用Abaqus软件模拟计算了苏州轨道交通5号线茅蓬路站基坑工程中TRD工法墙(止水帷幕)施工引起的周边土体位移情况,并对比分析了计算结果与实测结果,结果表明:①TRD工法墙成墙施工和墙体形成养护期间,土体深层水平位移方向分别朝向墙体外侧和内侧,地表分别产生隆起和回落;②在距离TRD工法墙1~5 m范围内,土体最大深层水平位移计算和实测值分别为16.40 mm和16.14 mm(朝向墙体),地表最大隆起的计算和实测值分别为2.78 mm和7.18 mm;③有限元模拟和实测的深层土体水平位移、地表竖向变形规律基本一致,TRD工法墙施工对周边环境的影响总体较小。
Based on the excavation project of Maopeng Road Station of Suzhou rail transit line 5,the two-dimensional numerical model was established using ABAQUS software,and the surrounding soil displacement caused by TRD construction was calculated and compared with the measured results.The results show that:(1)in the construction and curing stages of the TRD,the horizontal displacement direction of deep soil moves towards the outer and inner sides of wall respectively,and the ground surface first rises and then falls back;(2)within the range of 1-5m of TRD,the calculated and measured values of the maximum deep soil horizontal displacement are 16.40mm and 16.14mm(facing the wall),whereas the calculated and measured values of ground heaves are 2.78mm and 7.18mm respectively;(3)the simulated results of the horizontal displacement and vertical displacement agree with the field measurements,and the influence of TRD construction on the surrounding environment is generally small.
作者
陈秀鸣
陈洁瑶
周顺新
曹屹东
徐亚萍
CHEN Xiuming;CHEN Jieyao;ZHOU Shunxin;CAO Yidong;XU Yaping(Suzhou Rail Transit Group Co.,Ltd.,Suzhou 215003,China;China Design Group Corporation Limited China Design Group Co.,Ltd.,Nanjing 210014,China;Suzhou construction quality and safety supervision station,Suzhou 215001,China;School of Urban Rail Transportation,Soochow University,Suzhou 215137,China)
出处
《四川建材》
2021年第7期67-69,共3页
Sichuan Building Materials
基金
苏州市轨道交通集团有限公司项目:TRD工法在苏州轨道交通工程中的应用研究(SZZG06YJ1030015)。
关键词
TRD工法墙
施工
数值模拟
土体变形
TRD method
construction
numerical simulation
soil deformation
