| 地下连续墙基础沉降数值分析 |
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| 引用本文： | 孟凡超,陈晓东,舒中潘.地下连续墙基础沉降数值分析[J].公路,2007(3):55-58. |
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| 作者姓名： | 孟凡超 陈晓东 舒中潘 |
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| 作者单位： | 1. 中交公路规划设计院,北京市,100010
2. 四川地质工程勘察院,成都市,610072 |
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| 基金项目： | 交通部西部交通建设科技项目(200331849457) |
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| 摘 要： | 基于黄土的物理力学特性,利用高度非线性有限元分析软件MSC.MARC,采用Druker-Prager模型对黄土地层中地下连续墙基础的沉降进行了三维有限元数值模拟,计算结果表明:墙芯土的竖向变形主要发生在墙顶附近;墙端以下土体的竖向变形随着深度的增加而迅速减小;墙端下约1.5倍的基础宽范围内土体的竖向变形为整个基础沉降的主要部分。
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| 关 键 词： | 桥梁 黄土 地下连续墙 沉降 三维有限元分析 |
| 文章编号： | 0451-0712（2007）03-0055-04 |
| 修稿时间： | 2006-09-19 |
Numerical Analysis for Settlement of Diaphragm Wall Foundation |
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| MENG Fan-chao,CHEN Xiao-dong,SHU Zhong-pan.Numerical Analysis for Settlement of Diaphragm Wall Foundation[J].Highway,2007(3):55-58. |
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| Authors: | MENG Fan-chao CHEN Xiao-dong SHU Zhong-pan |
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| Institution: | 1. China Highway Planning and Design lnstitute(HPDI |
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| Abstract: | On the basis of the physical and mechanical characteristics of loess and adopting the nonlinear finite element analysis soft MSC.MARC,a 3-D finite element numerical simulation is carried out for the settlement of diaphragm wall foundation in loess by the Druker-Prager model.The calculation results show that: the vertical deformation of the centre soil in diaphragm wall occurrs mostly about the head of the wall,the vertical deformation below the wall toe decreases sharply with the depth increases and the settlement of soil under the wall always takes place in the depth that ranges from 0 to 1.5 times of the foundation width below the wall toe. |
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| Keywords: | bridge loess diaphragm wall settlement 3-D FEA |
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