| 多年冻土地区钻孔灌注桩承载性能分析 |
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| 引用本文： | 刘东升,王欣南.多年冻土地区钻孔灌注桩承载性能分析[J].武汉理工大学学报,2006,28(8):77-80. |
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| 作者姓名： | 刘东升 王欣南 |
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| 作者单位： | 中交第二公路勘察设计研究院,武汉,430052 |
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| 摘 要： | 基于ANSYS有限元软件平台，建立了多年；东土地区单桩桩土空间体系的有限元模型，结合工程实例系统地分析了桩长、桩径以及桩的长径比变化时对钻孔灌注桩承载性能的影响：研究结果表明：对于多年冻土地区的钻孔灌注桩。桩径的增加不仅能提高桩的极限承载力、而且能有效地控制桩顶的沉降，因此应选取合理的长径比才能充分发挥桩基的作用。
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| 关 键 词： | 多年冻土 桩基础 桩土相互作用 有限元法 沉降 |
| 文章编号： | 1671-4431(2006)08-0077-04 |
| 修稿时间： | 2006年4月15日 |
Research of Bored Pile Carrying Capacity in Permafrost Region |
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| LIU Dong-sheng,WANG Xin-nan.Research of Bored Pile Carrying Capacity in Permafrost Region[J].Journal of Wuhan University of Technology,2006,28(8):77-80. |
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| Authors: | LIU Dong-sheng WANG Xin-nan |
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| Abstract: | This finite element model of single pile-soil space system of frozen soil was erected based on the software of ANSYS.The finite element method used in the interaction of pile and soil was testified accurate and credible.The influence of load and displacement curve,brought by the change of pile's length and radius,was researched in this paper.The research result manifested that the increase of pile's radius not only improved the pile carrying capacity but also reduced the pile's displacement,which would be very useful to permafrost area pile foundation design. |
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| Keywords: | permafrost interaction of pile and soil vertical carrying capacity single pile load transfer |
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