黄土地区大高度沉井井壁应力和变形的影响因素与数值分析  

Study on Influencing Factors of Wall Stress and Deformation of Large Height Caisson in Loess Areas

作　　者：王翠华[1] 余沛 WANG Cuihua;YU Pei(School of Civil Engineering,Shangqiu Institute of Technology,Shangqiu 476000,China;School of Civil Engineering,Xinyang University,Xinyang 464000,China)

机构地区：[1]商丘工学院土木工程学院,河南商丘476000 [2]信阳学院土木工程学院,河南信阳464000

出　　处：《太原学院学报(自然科学版)》2025年第2期1-6,共6页Journal of TaiYuan University:Natural Science Edition

基　　金：河南省科技攻关项目(242102320042)。

摘　　要：为了分析大高度沉井井壁应力和变形的影响规律,采用ABAQUS有限元软件,建立沉井井壁有限元模型,分析了沉井内径、井壁厚度、混凝土弹性模量以及沉井深度等因素对井壁应力和变形的影响。结果表明:沉井井壁底部的环向应力和径向位移最大;沉井井壁的最大环向应力和最大径向位移随着沉井内径和沉井深度的增大而增大;沉井井壁的最大环向应力和最大径向位移随着沉井壁厚的增大而减小;弹性模量对沉井井壁的最大环向应力和最大径向位移基本没有影响。In order to analyze the influence law of caisson wall stress and deformation,a finite element model of caisson wall was established by ABAQUS finite element software,and the influence of factors such as inner diameter,wall thickness,elastic modulus of concrete and depth of caisson wall on the stress and deformation of caisson wall was analyzed.The results showed that the annular stress and radial displacement at the bottom of shaft wall were the largest.The maximum circumferential stress and radial displacement of caisson wall increased with the increase of caisson inner diameter and depth.The maximum circumferential stress and radial displacement of shaft wall decreased with the increase of shaft wall thickness.The elastic modulus had no effect on the maximum circumferential stress and the maximum radial displacement of the shaft wall.

关 键 词：大高度沉井 井壁应力 井壁变形 沉井施工 数值模拟 

分 类 号：TU475[建筑科学—结构工程]