Study on Loading Behavior of Composite Foundation Integrated by Cement Mixing Piles and CFG Piles
详细信息
- 责任者：Li Longqi (School of Civil Engineering ; Southwest Jiaotong University ; Chengdu 610031 ; China) ; Luo Shuxue
- 刊名：Hydrogeology and Engineering Geology
- 出版年：2012
- 卷期：39(6)
- 关键词：水泥粉煤灰碎石桩 ; cement fly-ash gravel piles ; 深层搅拌桩 ; deep mixing piles ; 地基加固 ; foundation stabilization
- 页码：p.82-86
- 图表：2 illus., 1 table, 8 refs.
- 分类号：1702
- issnNo：ISSN1000-3665
- isbnNo：CN11-2202/P
摘要
Based on the Harbin-Dalian passenger dedicated railway,this paper conducted parameter inversion in combination with the Hardening-Soil constitutive model,while site test and numerical analysis have been adopted to study the loading character of this kind of composite foundation.The result shows that CFG piles undertake most load of the superstructure,while cement mixing piles take the task of improving the characters of plastic-like flow soil and keeping the integrity of the system.Moreover,the cement mixing piles improve the CFG capacity by weakening the negative friction and the total capacity of composite foundation has been enhanced in turn.
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