| 单桩复合地基桩身附加应力分布的三维数值模拟 |
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| 引用本文： | 沈苾文,张英. 单桩复合地基桩身附加应力分布的三维数值模拟[J]. 华北水利水电学院学报, 2002, 23(3): 46-49 |
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| 作者姓名： | 沈苾文 张英 |
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| 作者单位： | 浙江水利水电专科学校,浙江,杭州,310016 |
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| 摘 要： | 通过编制能正确反映复合地基各种相互作用的三维非线性有限元 -无界元耦合程序 ,采用线弹性模型和Duncan -Chang非线性本构模型 ,分析了褥垫层在复合地基中的作用 ,并讨论了有褥垫层时桩体刚度、桩长的变化对复合地基桩身应力分布的影响 ;在此基础上 ,给出了桩体刚度对承台下桩土应力扩散规律的影响 .所得结果对工程实际践指导意义
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| 关 键 词： | 复合地基 数值模拟 桩土模量比 桩身应力 |
| 文章编号： | 1002-5634(2002)03-0046-04 |
| 修稿时间： | 2001-12-25 |
3-D Numerical Simulation of Pile Stress Distribution of Composite Foundation |
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| SHEN Bi-wen,ZHANG Ying. 3-D Numerical Simulation of Pile Stress Distribution of Composite Foundation[J]. Journal of North China Institute of Water Conservancy and Hydroelectric Power, 2002, 23(3): 46-49 |
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| Authors: | SHEN Bi-wen ZHANG Ying |
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| Abstract: | A 3-D FEM-IEM (three dimension finite element method-infinite element method) nonlinear-analysis computer program is built up, which can account for the main affecting factors of bearing characteristics and simulate the real bearing characteristics of composite foundation. Numerical simulation and tests are conducted for the single-pile composite foundation to quantitatively analyze the mechanism of interaction of pile-soil-cap.The results of this systematic research will be helpful to the designers and constructors of the foundation engineering. |
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| Keywords: | composite foundation numerical simulation pile-soil rigiditi ratio pile stress |
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