Horizontal vibration response analysis of pile foundation in liquefied 
soil under Winkler foundation model

XIONG Hui; YANG Feng

doi:10.16285/j.rsm.2018.2332

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Horizontal vibration response analysis of pile foundation in liquefied soil under Winkler foundation model

更新时间：2026-06-25

- Horizontal vibration response analysis of pile foundation in liquefied soil under Winkler foundation model
- Vol. 41, Issue 1, Pages: 103-110(2020)
- 作者机构：
  
  湖南大学土木工程学院,湖南,长沙,410082
- 作者简介：
- 基金信息：
- DOI：10.16285/j.rsm.2018.2332
  CLC： TU473.1
- Online First：05 January 2020，
  
  Published：2020
- 稿件说明：
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XIONG Hui, YANG Feng. Horizontal vibration response analysis of pile foundation in liquefied soil under Winkler foundation model[J]. 2020, 41(1): 103-110.
DOI：

XIONG Hui, YANG Feng. Horizontal vibration response analysis of pile foundation in liquefied soil under Winkler foundation model[J]. 2020, 41(1): 103-110. DOI： 10.16285/j.rsm.2018.2332.

摘要

在桩基顶部承受竖向荷载作用的条件下，将完全液化后的上层土体视为流体，将桩基等效为欧拉-伯努利梁模型，探讨了桩底嵌固时桩基顶部的水平振动阻抗。运用流体动力方程模拟顶部液化土层的运动，运用文克尔地基模拟下部非液化分层土的运动。结合传递矩阵法，利用液化土与非液化分层土交界面处的位移、转角和内力连续条件，得到桩基顶部和底部的相关位移?内力表达关系式。根据桩基底部的嵌固条件，求得桩顶阻抗的表达式。与已有文献解进行对比，验证了分析过程的正确性。对阻抗影响条件进行参数分析，表明液化深度、轴力和流体密度大小对桩顶阻抗有不同的影响。

Abstract

Under the condition of vertical load

the soil on the top of pile foundation after complete liquefaction is regarded as fluid

and the pile foundation is equivalent to the Euler-Bernoulli beam model. The vibration impedance of the pile top with embedded pile bottom is discussed. The expressions of relationships between displacement and internal force of pile’s top and pile’s bottom are obtained by means of the matrix transfer method after simulating liquefied soil using fluid dynamic equation and simulating lower non-liquefied soil layer with Winkler foundation

as well as considering the continuous conditions of displacement

rotation angle and internal force at the interface between the liquefied soil and the non-liquefied soil. Finally

according to the embedded conditions at the bottom of the end bearing pile

the expression of the impedance of the pile top is obtained. Compared with the existing literature

the correctness of the analysis process in this paper is verified. The parametric analysis of the conditions affecting the impedance shows that the liquefaction depth

the axial force exerted on the top of the pile and the fluid density have different effects on the impedance of the pile top.

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