| CFG桩横向荷载作用下竖向沉降和承载力的试验研究 |
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| 引用本文： | 冯震,王连俊,王娜,丁铭绩,刘升传.CFG桩横向荷载作用下竖向沉降和承载力的试验研究[J].北京交通大学学报(自然科学版),2007,31(4):68-70,74. |
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| 作者姓名： | 冯震 王连俊 王娜 丁铭绩 刘升传 |
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| 作者单位： | [1]防灾科技学院,燕郊101601 [2]北京交通大学土木建筑工程学院,北京100044 |
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| 摘 要： | 通过室内模型桩试验,分析了水平力对CFG桩竖向沉降和极限承载力的影响.运用三维有限元的方法,考虑了土体的弹塑性(Prandtl-Reuss模型),以及在桩土界面处设置接触单元来考虑桩土的滑移和开裂,对模型桩进行了模拟分析.通过现场原形实验,对分析结果进行验证.结果表明,水平荷载的存在,既增加了附加沉降量,也提高了极限承载力.
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| 关 键 词： | 模型试验 横向荷载 CFG桩 模拟分析 |
| 文章编号： | 1673-0291（2007）04-0068-03 |
| 修稿时间： | 2005-10-282007-06-10 |
A Test Study on the Axial Settlement and Bearing Capacity of CFG Piles Under Lateral Loads |
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| FENG Zhen,WANG Lian-jun,WANG Na,DING Ming-ji,LIU Sheng-chuan.A Test Study on the Axial Settlement and Bearing Capacity of CFG Piles Under Lateral Loads[J].JOURNAL OF BEIJING JIAOTONG UNIVERSITY,2007,31(4):68-70,74. |
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| Authors: | FENG Zhen WANG Lian-jun WANG Na DING Ming-ji LIU Sheng-chuan |
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| Institution: | 1. Institute of Disaster Prevention Science and Technology, Yanjiao 101601, China; 2. School of Civil Engineering and Architecture, Beijing Jiaotong University, Beijing 100044, China |
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| Abstract: | By means of a series of model tests,the main objective of the paper is to investigate the effects of lateral loading on axial displacement and bearing capacity of CFG piles.In addition,the paper also studies the mechanical behavior of a model pile,by means of three-dimensional finite element method with consideration of nonlinear behavior of the soil(Prandtl-Reuss model),while pilesoil contact elements are used to simulate the soil slippage and pile-soil separation.Then,an in-situ case study is carried out,which shows good agreement with the experimental results.In the end,some valuable conclusions are summarized. |
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| Keywords: | model test lateral load CFG pile simulation analysis |
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