| 深基坑开挖引起的土体变形模拟 |
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| 引用本文： | 曾亚武,刘继国,蔡元奇.深基坑开挖引起的土体变形模拟[J].武汉大学学报(工学版),2006,39(5):53-57. |
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| 作者姓名： | 曾亚武 刘继国 蔡元奇 |
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| 作者单位： | 1. 武汉大学土木建筑工程学院,湖北,武汉,430072
2. 中交第二公路勘察设计研究院隧道室,湖北,武汉,430052 |
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| 摘 要： | 采用FLAC3D软件对某深基坑开挖引起的坑底隆起及地表变形进行了数值模拟.计算中采用摩尔库仑弹塑性模型模拟土体特征,采用接触单元模拟土体与基坑围护结构之间的相互作用.通过模拟开挖过程,获得了不同开挖阶段的地表沉降、坑底隆起和墙后土体水平位移资料,可供工程设计和施工参考.
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| 关 键 词： | 基坑开挖 坑底隆起 地表变形 数值模拟 |
| 文章编号： | 1671-8844(2006)05-053-04 |
| 修稿时间： | 2006年6月12日 |
Simulation of soil deformation due to excavation of deep foundation pit |
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| ZENG Yawu,LIU Jiguo,CAI Yuanqi.Simulation of soil deformation due to excavation of deep foundation pit[J].Engineering Journal of Wuhan University,2006,39(5):53-57. |
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| Authors: | ZENG Yawu LIU Jiguo CAI Yuanqi |
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| Abstract: | The uplifts of the bottom of foundation pit and the deformation of the ground surface due to excavation of the deep foundation pit are simulated using the software FLAC~(3D).During the simulation,the Mohr-Coulomb model is used in soils;and contact elements are used on the interfaces between the structure and soil.The settlements of ground surface,uplifts of the bottom of pit and horizontal displacements of the soil behind the vertical wall at every excavating step are obtained;and the results can be for reference in designing and constructing of foundation pits. |
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| Keywords: | excavation of foundation pit uplift of pit bottom deformation of ground surface numerical simulation |
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