| 灌注桩桩土相互作用试验及有限元模拟研究 |
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| 引用本文： | 赵法锁,俞剑勇,罗丽娟,卢全中,胡志平.灌注桩桩土相互作用试验及有限元模拟研究[J].力学学报,2001,9(1):87-92. |
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| 作者姓名： | 赵法锁 俞剑勇 罗丽娟 卢全中 胡志平 |
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| 作者单位： | 1. 中国科学院地球化学所,广州510640;
2. 长安大学地质工程系 西安710054;
3. 天津职业学院,天津300451 |
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| 基金项目： | 国土资源部岩土工程开放研究实验室资助项目(KF97003) |
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| 摘 要： | 以灌注桩桩土相互作用的原位试验为基础, 结合西安土层结构、性质; 采用有限单元法对黄土地区的砼灌注桩桩—土相互作用进行仿真模拟, 研究了桩土相互作用、荷载的传递规律、桩土相对位移与桩侧摩阻力的关系。通过桩载试验资料对比, 得出三维有限单元法的模拟结果与实测值相近, 该研究进一步揭示了桩土相互作用的实质, 为最优桩长的选取和单桩承载力的确定奠定了基础。
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| 关 键 词： | 桩载试验 有限单元法 桩土相互作用 弹塑性 硬化指数 相对位移 侧摩阻力 |
| 收稿时间： | 2000-07-26 |
| 修稿时间： | 2000-12-10 |
PILE-SOIL INTERACTION TEST OF FILLING PILE AND MODELING STUDY BY THE FINITE ELEMENT METHOD |
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| ZHAO Fasuo,YU Jianyong,LUO Lijuan,LU Quanzhong,HU Zhiping.PILE-SOIL INTERACTION TEST OF FILLING PILE AND MODELING STUDY BY THE FINITE ELEMENT METHOD[J].chinese journal of theoretical and applied mechanics,2001,9(1):87-92. |
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| Authors: | ZHAO Fasuo YU Jianyong LUO Lijuan LU Quanzhong HU Zhiping |
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| Institution: | 1. Institute of Geology and Geochemistry, Chinese Academy of Science, Guangzhou 510640;
2. Chang′an University, Xi′an 710054;
3. Tianjin Vocational Colloge, Tianjin 300451 |
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| Abstract: | Based on the in situ test of pile soil interaction of filling pile, combining with the properties of soils in Xi′an, and modelings pile soil interaction of concrete filling pile in the loess area by using finite element method, the authors studied pile soil interaction, regularity of load transferring, and the relation between relative displacement and lateral friction resistance of the pile. By comparing of pile load test data,it is found that the modeling result by three dimensional finite element method is similar to that of actual measurement. Moreover, the essence of pile soil interaction is revealed. It provides a basis for the selection of optimum pile length and the definition of pile bearing capacity. |
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| Keywords: | Pile load test Finite element method Pile-soil interaction Elasto-plasticity Hardening index Relative dispacement Lateral friction resistance |
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