摘要
地铁隧道开挖施工会引起临近土体变形,基于工程安全、能预测隧道施工引起地面变形的方法受到关注。以工程实例,利用有限元软件建立相关模型进行了数值分析,研究了隧道两种断面开挖施工方法引起不同方向的土体变形,将计算结果与实测比对分析。结果表明:采用本文预测方法得到的计算值和实测值分布规律相近,位移变形处于容许的范围内,不会对实际施工产生影响,本预测方法建立的计算模型建立合理,施工方法安全可靠。
Subway tunnel excavation will cause deformation of adjacent soil,so the method of predicting ground deformation caused by tunnel construction based on engineering safety has attracted attention.In this paper,the finite element software is used to establish the relevant model for numerical analysis,and the soil deformation in different directions caused by two kinds of tunnel excavation construction methods is studied,and the calculated results are compared with the actual measurement.The calculated value and the measured value distribution law are similar,and the displacement deformation is within the allowable range,and will not affect the actual construction;the calculation model established by this prediction method is reasonable,the construction method is safe and reliable.
作者
徐新星
XU Xinxing(School of Architecture, Dongguan Polytechnic, Dongguan 523808, China)
出处
《东莞理工学院学报》
2022年第3期115-119,共5页
Journal of Dongguan University of Technology
基金
东莞职业技术学院建筑工学研一体产教融合项目(GC22030601)。
关键词
隧道开挖
施工方案
土体变形
预测
tunnel excavation
construction plan
soil deformation
to predict