| 超长单桩承载机理的有限元分析 |
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| 引用本文： | 胡念,高睿,郭文增,杨志祥.超长单桩承载机理的有限元分析[J].中国农村水利水电,2007,0(5):82-84. |
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| 作者姓名： | 胡念 高睿 郭文增 杨志祥 |
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| 作者单位： | 1. 武汉大学土木建筑工程学院,武汉,430072
2. 武汉天兴洲道桥投资开发有限公司,武汉,430062 |
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| 基金项目： | 武汉市建设科技攻关项目 |
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| 摘 要： | 采用三维有限元法分析了超长单桩在竖向荷载作用的传递机理。其中土体本构关系采用D-P模型模拟，混凝土采用线弹性模型模拟，桩土界面采用接触单元模拟。分析结果表明超长桩属摩擦型桩，其承载能力应该由桩顶沉降控制。
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| 关 键 词： | 超长单桩 承载机理 本构模型 摩擦桩 沉降 |
| 文章编号： | 1007-2284（2007）05-0082-03 |
| 修稿时间： | 2007-04-03 |
Finite Element Analysis of Carrying Mechanism of Single Super-long Piles |
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| HU Nian,GAO Rui,GUO Wen-zeng,YANG Zhi-xiang.Finite Element Analysis of Carrying Mechanism of Single Super-long Piles[J].China Rural Water and Hydropower,2007,0(5):82-84. |
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| Authors: | HU Nian GAO Rui GUO Wen-zeng YANG Zhi-xiang |
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| Institution: | 1. Civil Engineering School of Wuhan University, Wuhan 430072, China; 2. Wuhan Tianxingzhou Bridge and Road Investment Development Co. Ltd, Wuhan 430022, China |
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| Abstract: | In this paper, the carrying mechanism of single super-long Piles under vertical loads is studied with 3D FEM. D-P plastic model is used to simulate the constitutive relation of soils; and linear elastic model is used to simulate the constitutive relation of concrete; the interface of pile-soil is simulated by contact element supplied by ANSYS. Results of analyses indicate that single super-long pile belongs to friction pile, and the carrying capacity of super-long pile should be depended on the top settlement. |
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| Keywords: | single super-long piles carrying mechanism constitutive model friction pile settlement |
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