On composite foundation with different vertical reinforcing elements under vertical loading: A physical model testing study

Xian Zhi Wang, Jun Jie Zheng, Jianhua Yin

Research output: Journal article publicationJournal articleAcademic researchpeer-review

8 Citations (Scopus)

Abstract

A physical model facility was designed, built, and setup for conducting model tests on a composite foundation in a soil ground. The model tests were carried out on a composite foundation with different combinations of vertical reinforcement elements in the same soil ground. Via the analysis of the collected data the characteristics of the composite foundation with different reinforcing elements were obtained, including the characteristics of load-settlement curves, column stresses, stresses of the inter-column soil, pile-soil stress ratio, and load-sharing ratios of columns and soil. Results from the model tests reveal the mechanism of a composite foundation with different reinforcing elements quantitatively. It is concluded that both a composite foundation with a combination of steel pipe pile and sand column and that with a combination of concrete pile and lime column have a higher bearing capacity than the composite foundation with only sand columns with the same conditions of soil ground and loading. A composite foundation with lime column and sand column embodies no much better performance than that with sand columns only.
Original languageEnglish
Pages (from-to)80-87
Number of pages8
JournalJournal of Zhejiang University: Science A
Volume11
Issue number2
DOIs
Publication statusPublished - 1 Feb 2010

Keywords

  • Composite foundation
  • Concrete pile
  • Lime column
  • Model test
  • Pile-soil stress ratio
  • Sand column
  • Steel pipe pile

ASJC Scopus subject areas

  • Engineering(all)

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