Journal of Hebei University(Natural Science Edition) >

2010 , Vol. 30 >Issue 1: 5 - 10

DOI: https://doi.org/10.3969/j.issn.1000-1565.2010.01.002

Computation Methods for Raft Foundation on Variable Stiffness Rigid Pile Composite Foundations

  • ZHANG Jian-hui ,
  • ZHANG Qian ,
  • ZHANG Sufen ,
  • CAO Ying-chun
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Online published: 2010-01-25

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Abstract

A set of approximate analysis formulas of pile-soil system in rigid pile composite foundations is derived. The element-free method is used to simulate the raft on the composite foundations, and the finite element method to solve the cushion. A computation method of raft foundation on variable stiffness rigid pile composite foundations is established by coupled the pile-soil system and the cushion as well as the raft, based on the displacement continuity. The reasonability and reliability of the proposed method are showed by the results of a large-scale model experiment.

Key words： variable stiffness; rigid pile composite foundations; pile-soil system; element-free method; finite element method; raft foundation

Cite this article

ZHANG Jian-hui , ZHANG Qian , ZHANG Sufen , CAO Ying-chun . Computation Methods for Raft Foundation on Variable Stiffness Rigid Pile Composite Foundations[J]. Journal of Hebei University(Natural Science Edition), 2010 , 30(1) : 5 -10 . DOI: 10.3969/j.issn.1000-1565.2010.01.002

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