地下连续墙施工力学机理三维数值分析  

Three-dimensional numerical analysis mechanical behavior of a constructing diaphragm wall panel

作　　者：丁勇春[1] 王建华[1] 褚衍标[1] 钱玉林[2] 

机构地区：[1]上海交通大学土木工程系,上海200240 [2]扬州大学土木工程系,扬州225009

出　　处：《岩土力学》2007年第8期1757-1761,共5页Rock and Soil Mechanics

基　　金：上海科学技术委员会资助课题(No.04dzl2001)

摘　　要：采用三维有限差分方法,模拟了地下连续墙成槽开挖及混凝土浇筑施工全过程,研究了连续墙槽段外围土层在地下连续墙施工过程中的应力状态与变形形态,并将计算结果和现场实测结果进行比较。结果表明,数值计算应力结果与实测结果规律基本一致,但槽段底部数值计算应力变化梯度比实测值略大,采用该计算方法模拟地下连续墙施工全过程具有一定的可行性和较强的可靠性。The construction sequences of a diaphragm wall panel are simulated by the three-dimensional finite difference method. Ground responses including stress state and deformation of the surrounding ground adjacent to the excavated trench, are studied. Furthermore, the comparison between computed results and field measurements shows that the variation law is quite similar; while the variation of numerical data is a little greater than that of the measurements, especially around the toe of the trench. It can be concluded that this method can simulate the construction process of diaphragm wall well.

关 键 词：数值分析 泥浆成槽 力学机理 地下连续墙 施工 

分 类 号：TU473.1[建筑科学—结构工程]