Study on over-length drilled pile bearing behavior under vertical load

WANG Tao; MA Ye

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Study on over-length drilled pile bearing behavior under vertical load

更新时间：2026-06-25

- Study on over-length drilled pile bearing behavior under vertical load
- Vol. 26, Issue 7, (2005)
- 作者机构：
  
  1. 清华大学土木水利学院,北京,100084
  2. 交通部公路科学研究所,北京,100088
- 作者简介：
- 基金信息：
- DOI：
  CLC： TU473.1
- Online First：17 December 2013，
  
  Published：2005
- 稿件说明：
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WANG Tao, MA Ye. Study on over-length drilled pile bearing behavior under vertical load[J]. 2005, 26(7).
DOI：

WANG Tao, MA Ye. Study on over-length drilled pile bearing behavior under vertical load[J]. 2005, 26(7). DOI：

摘要

利用工程桩作为锚桩，并在反力系统中充分应用预应力技术，建立了大吨位静载试验装置。分析了超长桩的承载性能和荷载传递机理，结果表明：超长桩的荷载-沉降曲线没有明显破坏点。其竖向荷载主要依靠桩侧摩阻力进行传递，桩侧摩阻力的发挥存在最佳深度范围。超长桩的承载性能还受土体特性、施工工艺等因素影响。

Abstract

Static heavy load test of over-length drilled pile is carried out by taking prestressed working pile as part of anchor system，the test equipment is set up capable of heavy weight loading. On the basis of in-situ data of test

the bearing behavior and load transmission characteristics are analyzed. There is no obvious failure feature in over-length drilled piles. The vertical load transmission mostly depends on the side friction of pile

and there is an optimal range of depth for side friction. Besides

the bearing capacity of over-length drilled pile will also be influenced by the factors like constructing technologies and soil properties.

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