| 刚性承台超大群桩承载性状的三维有限元分析 |
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| 引用本文： | 吴鹏.刚性承台超大群桩承载性状的三维有限元分析[J].铁道科学与工程学报,2007,4(2):13-18. |
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| 作者姓名： | 吴鹏 |
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| 作者单位： | 中南大学,土木建筑学院,湖南,长沙,410075 |
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| 基金项目： | 江苏省交通厅科学研究项目(04Y029) |
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| 摘 要： | 为了了解超大群桩基础的承载性状,用有限元分析程序ABAQUS,对土体采用莫尔-库仑模型,对桩土界面采用非线性弹簧模拟荷载传递,对超大直径超长桩组成的群桩基础的承载性状进行了参数分析。具体分析了桩数、桩距、桩长、桩径、土变形模量、土内摩擦角、土粘聚力等因素对群桩的荷载-位移曲线以及桩顶轴力分布的影响规律。
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| 关 键 词： | 超大群桩 有限元方法 刚性承台 莫尔-库仑模型 |
| 文章编号： | 1672-7029（2007）02-0013-06 |
| 修稿时间： | 2006-10-16 |
Bearing characters analysis of great pile groups with rigid cap using 3D FEM |
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| WU Peng.Bearing characters analysis of great pile groups with rigid cap using 3D FEM[J].Journal of Railway Science and Engineering,2007,4(2):13-18. |
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| Authors: | WU Peng |
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| Institution: | School of Civil and Architectural Engineering, Central South University, Changsha 410075, China |
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| Abstract: | In order to make clear for the bearing characters of great pile groups,a lot of parameters analysis of great pile group was made using program ABAQUS.Load-displacement curve and distributing regular of pile head of pile group was studied by pile number,pile space,pile diameter,Young's modulus of soil,internal friction angle,cohesive strength was analyzed.The results are presented. |
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| Keywords: | great pile groups FEM rigid cap Mohr-Coulomb model |
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