Model test research on load transfer mechanism of composite ground considering underlying layer features

QI Le; LIU Wei; SUN Chang-shuai; ZHANG Yong

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Model test research on load transfer mechanism of composite ground considering underlying layer features

更新时间：2026-06-25

- Model test research on load transfer mechanism of composite ground considering underlying layer features
- Vol. 33, Issue S1, (2012)
- 作者机构：
  
  1. 山东电力工程咨询院有限公司,济南,210013
  2. 山东省水文水资源勘测局,济南,210013
- 作者简介：
- 基金信息：
- DOI：
  CLC： TU433
- Online First：21 September 2012，
  
  Published：2012
- 稿件说明：
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QI Le, LIU Wei, SUN Chang-shuai, et al. Model test research on load transfer mechanism of composite ground considering underlying layer features[J]. 2012, 33(S1).
DOI：

QI Le, LIU Wei, SUN Chang-shuai, et al. Model test research on load transfer mechanism of composite ground considering underlying layer features[J]. 2012, 33(S1). DOI：

摘要

为研究存在下卧层复合地基的荷载传递规律，进行多组复合地基室内模型试验。针对不同桩径、垫层厚度和下卧层厚度等工况进行试验，得到增大桩径不能提高桩体的承载力发挥度；复合地基的设计要充分考虑垫层和下卧层对荷载传递的影响一系列有益的结论。试验结果表明，复合地基中桩身轴力、桩侧摩阻力和荷载分担比的分布及发展过程，可为复合地基理论研究提供一定的依据，并对其设计起到一定的指导作用。

Abstract

In order to research the load transfer mechanism of composite ground with underlying layer

a series of model tests were performed. The tests were of various pile diameters

cushion thicknesses and underlying layer thicknesses. Increasing the diameter of pile can not improve the exerting degree of pile bearing capacity

and the cushion and underlying layer should be considered fully in the composite ground design. Test results show the distribution of axial forces

skin friction and pile-soil load shareing ratio

and provide useful information for the study on the composite foundation theory

and give a guide to its engineering design.

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