| CFG桩复合地基承载特性的试验及数值分析 |
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| 引用本文： | 张石友,赵自文.CFG桩复合地基承载特性的试验及数值分析[J].河南科学,2014(4):560-563. |
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| 作者姓名： | 张石友 赵自文 |
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| 作者单位： | [1]河南省电力勘测设计院,郑州450007 [2]河南省众慧电力工程咨询有限责任公司,郑州450007 |
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| 基金项目： | 基金项目：国家自然科学基金（41274012） |
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| 摘 要： | CFG桩由于桩身模量较高,地基处理效果较好,已经被广泛应用于工程实践中.利用载荷板试验,对CFG桩的单桩、桩间土以及复合地基的承载力特性进行了全面讨论,并阐述了CFG桩复合地基的承载力机理.基于复合地基载荷板试验,建立了轴对称有限元分析模型,讨论了CFG桩的荷载传递规律以及置换率和桩长对于CFG桩复合地基承载力的影响.
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| 关 键 词： | CFG桩 承载力 有限元分析 |
Field Test and Numerical Analysis of Bearing Characteristics for Composite Foundation Reinforced by CFG Pile |
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| Zhang Shiyou,Zhao Ziwen.Field Test and Numerical Analysis of Bearing Characteristics for Composite Foundation Reinforced by CFG Pile[J].Henan Science,2014(4):560-563. |
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| Authors: | Zhang Shiyou Zhao Ziwen |
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| Institution: | 1. Henan Electric Power Survey ＆ Design Institute, Zhengzhou 450007, China; 2. Henan Zhonghui Electric Power Engineering Consulting Co. Ltd., Zhengzhou 450007, China) |
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| Abstract: | CFG pile is widely used in practical engineering due to the high pile modulus and good foundation treatment effect. In this paper,plate load tests were conducted to research the bearing capacity characteristics of single pile,surrounding soil and composite foundation systematically. The bearing mechanism of composite foundation reinforced by CFG pile was also discussed. Based on plate load tests,the axisymmetric FEM model was built. The load transfer law and the influence of pile length and replacement ratio on composite foundation bearing capacity were also researched. |
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| Keywords: | CFG pile bearing capacity FEM |
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