基于桩顶沉降的桩基竖向承载力和位移分析

刘齐建; 杨林德

doi:10.13204/j.gyjz200503014

基于桩顶沉降的桩基竖向承载力和位移分析

doi: 10.13204/j.gyjz200503014

1.
同济大学,地下建筑与工程系,上海,200092

基金项目:

上海市重点学科建设项目

详细信息

作者简介:
刘齐建男 1973年2月出生讲师博士研究生

中图分类号: TU473.1
计量
- 文章访问数: 120
- HTML全文浏览量: 27
- PDF下载量: 108
- 被引次数: 0
出版历程
- 收稿日期: 2004-07-10
- 刊出日期: 2005-03-20

ANALYSIS OF VERTICAL BEARING CAPACITY AND DISPLACEMENT BY THE SETTLEMENT OF PILE TOP

1.
Department of Geotechnical Engineering,Tongji University Shanghai 200092

摘要

摘要: 基于按桩顶沉降分析桩基承载力和位移的思想,提出了一种改进的竖向受荷桩荷载传递计算方法。该方法以桩身压缩量为迭代变量,根据桩身的轴向变形与桩侧土变形协调关系,通过编制的计算程序,可按桩顶沉降直接计算桩顶荷载、桩身轴力分布以及桩身各点的位移,特别适用于对桩顶沉降有严格控制要求的桩基设计。结合某工程试桩实测数据进行了分析,理论计算与实测结果吻合较好。
- 桩基 /
- 桩顶沉降 /
- 竖向承载力 /
- 位移 /
- 改进的荷载传递方法
Abstract: Based on the idea to determine the piles vertical bearing capacity and deformation by the settlement of pile top, a modified load-transfer method is proposed for analyzing axially loaded piles. According to the deformation coordination of shaft and soil, a calculating program is designed. In the program, the compression of shaft is required as the only iterative variable. The vertical bearing capacity of pile top, axial force and the deformation of the shaft can be calculated through the program. The suggested method is especially suitable for pile foundation design with strict requirement of the settlement of pile top. Finally, the method is analyzed by the measured data on test piles for a project, and the calculated results agree well with the in-situ data.
- pile foundation /
- settlement of pile top /
- vertical bearing capacity /
- deformation /
- modified load-transfer method

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参考文献(12)

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