Analysis of a laterally loaded pile in a two-layer soil

ZHANG Ling; ZHAO Ming-hua; ZHAO Heng

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Analysis of a laterally loaded pile in a two-layer soil

更新时间：2026-06-25

- Analysis of a laterally loaded pile in a two-layer soil
- Vol. 32, Issue S2, (2011)
- 作者机构：
  
  湖南大学岩土工程研究所,长沙,410082
- 作者简介：
- 基金信息：
- DOI：
  CLC： TU473.1
- Online First：26 August 2011，
  
  Published：2011
- 稿件说明：
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ZHANG Ling, ZHAO Ming-hua, ZHAO Heng. Analysis of a laterally loaded pile in a two-layer soil[J]. 2011, 32(S2).
DOI：

ZHANG Ling, ZHAO Ming-hua, ZHAO Heng. Analysis of a laterally loaded pile in a two-layer soil[J]. 2011, 32(S2). DOI：

摘要

基于双层地基中的水平受荷桩的特性，对其受力变形进行了分析。将水平受荷桩视为竖直放置的弹性地基梁，基于Winkler弹性地基梁理论，考虑桩土共同工作得到水平受荷桩位移控制微分方程及其幂级数解答，进而根据内力与位移的连续条件得到了由桩顶受力及变形条件表示任一深度处桩身的水平位移、转角、弯矩及剪力的计算矩阵表达式。通过一具体算例将幂级数解计算结果与《公路桥涵地基与基础设计规范》推荐的简化计算公式计算结果进行了比较。结果表明：当第1层地基土的厚度在某一定值时，《规范》简化计算方法所得结果与幂级数解接近；但当层厚不在该值附近时，两个方法计算结果存在差异。

Abstract

Analytical solutions for vertical piles embedded in a two-layer soil system and subjected to lateral loads were carried out. The pile was regarded as a vertical elastic foundation beam; and then based on the basic concept of the Winkler elastic beam theory

the governing differential equation in terms of pile lateral deflection and its relative semi-analytical solutions by using the power series method were proposed. By considering the deflections and forces continuum conditions along the pile length

a matrix form of pile response at any depth was expressed through the deflections and lateral forces at the pile head. Moreover

the results obtained from the proposed solutions are compared with the results obtained from the simplified calculation solutions suggested by the “Chinese code for design of ground base and foundation of highway bridges and culverts”. The comparative results indicate that when the height of the first soil layer is in the range of some value

the results from these two methods are consistent with each other. Otherwise

there is a difference between the results from these two methods.

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