Analyses of bearing capacity of pipe pile foundation in inhomogeneous and anisotropic soft ground

FAN Qing-lai; ZHANG Ke-yu; ZHANG Ling-nuo

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Analyses of bearing capacity of pipe pile foundation in inhomogeneous and anisotropic soft ground

更新时间：2026-06-25

- Analyses of bearing capacity of pipe pile foundation in inhomogeneous and anisotropic soft ground
- Vol. 29, Issue S1, (2008)
- 作者机构：
  
  1. 重庆交通大学桥梁结构工程交通行业重点实验室,重庆,400074
  2. 鲁东大学土木工程学院,山东,烟台,264025
- 作者简介：
- 基金信息：
- DOI：
  CLC： TU473
- Online First：15 April 2016，
  
  Published：2008
- 稿件说明：
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FAN Qing-lai, ZHANG Ke-yu, ZHANG Ling-nuo. Analyses of bearing capacity of pipe pile foundation in inhomogeneous and anisotropic soft ground[J]. 2008, 29(S1).
DOI：

FAN Qing-lai, ZHANG Ke-yu, ZHANG Ling-nuo. Analyses of bearing capacity of pipe pile foundation in inhomogeneous and anisotropic soft ground[J]. 2008, 29(S1). DOI：

摘要

对于非均质各向异性软土地基上管桩基础的承载力，基于塑性极限分析理论考虑软土强度的非均质与各向异性效应，提出了一种改进的三维极限分析上限解法。利用有限元分析软件ABAQUS，采用Hill理想弹塑性模型，对软基上管桩水平承载力进行了数值模拟，由此所得到的破坏模式与极限分析方法中的假设失稳机制基本一致。通过变动参数对比分析，探讨了软黏土不排水抗剪强度的各向异性和非均质性对于管桩基础承载力的影响。

Abstract

A modified three-dimensional plastic limit analysis method is proposed for lateral bearing capacity of the large-diameter pipe pile in the inhomogeneous and anisotropic soft ground. The bearing capacity is also numerically analyzed utilizing the FEM software ABAQUS

in which the soil is assumed to obey the Hill’s yield criterion. Both the failure mechanism assumed and the plastic limit analysis predictions are validated by numerical computations based on FEM. Through a parametric study

it is shown that the effect of soil strength anisotropy on the bearing capacity of the structure in inhomogeneous soil is smaller than that in homogeneous soft ground.

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