Testing and numerical analysis of load transfer mechanism of PHC pile

Lü Wen-tian; WANG Yong-he; LENG Wu-ming

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Testing and numerical analysis of load transfer mechanism of PHC pile

更新时间：2026-06-25

- Testing and numerical analysis of load transfer mechanism of PHC pile
- Vol. 27, Issue 3, (2006)
- 作者机构：
  
  中南大学土木建筑学院,长沙,410075
- 作者简介：
- 基金信息：
- DOI：
  CLC： TU473
- Online First：06 November 2013，
  
  Published：2006
- 稿件说明：
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Lü Wen-tian, WANG Yong-he, LENG Wu-ming. Testing and numerical analysis of load transfer mechanism of PHC pile[J]. 2006, 27(3).
DOI：

Lü Wen-tian, WANG Yong-he, LENG Wu-ming. Testing and numerical analysis of load transfer mechanism of PHC pile[J]. 2006, 27(3). DOI：

摘要

通过在预应力高强混凝土管桩(PHC桩)的桩顶、桩端及桩周各主要土层的分界面埋设应变计的静荷载试验，研究了PHC管桩的荷载传递机理，分析了轴力和桩侧摩阻力的变化规律。并以工程中PHC管桩的竖向抗压静载试验为基础，运用有限单元法对软土地区的PHC管桩桩-土相互作用进行模拟，在分析中采用弹塑性模型，引入了非线性接触面单元，并且考虑了土体的材料非线性。分析结果表明，计算值和实测值有一定的差别，但是变化趋势基本一致。

Abstract

Base on the static loading tests on prestressed high-strength concrete piles with strain gauges at the top and toe of pile and at interfaces of soil layer

the load transfer mechanism of PHC piles was studied; and the behaviors of skin resistance and inner force were analyzed. Based on the static load test on prestressed high-strength concrete piles (PHC piles) of a practical engineering

using the elastoplastic model

nonlinear interface elements and nonlinear soil elements

by the finite element method

pile-soil interaction of PHC pile in the soft soil area were simulated. The results of analysis indicate that there are many differences between the numerical predictions and the experimental results; however

it shows that the calculated distribution trend is in good agreement with the experimental results.

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