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

被引：9

作者：

Wang, Xian-zhi ^{[1
]}

Zheng, Jun-jie ^{[2
]}

Yin, Jian-hua ^{[3
]}

机构：

[1] Guangdong Tech Coll Water Resources & Elect Engn, Dept Water Resources, Guangzhou 510635, Guangdong, Peoples R China

[2] Huazhong Univ Sci & Technol, Sch Civil Engn & Mech, Wuhan 430074, Peoples R China

[3] Hong Kong Polytech Univ, Dept Civil & Struct Engn, Hong Kong, Hong Kong, Peoples R China

来源：

JOURNAL OF ZHEJIANG UNIVERSITY-SCIENCE A | 2010年 / 11卷 / 02期

基金：

中国国家自然科学基金;

关键词：

Steel pipe pile; Concrete pile; Lime column; Sand column; Composite foundation; Model test; Pile-soil stress ratio; NUMERICAL-ANALYSIS; BEHAVIOR; PILES;

D O I：

10.1631/jzus.A0900252

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

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.

引用

页码：80 / 87

页数：8

共 17 条

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