| 任意圈层径向非均质土中桩的纵向振动特性 |
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| 引用本文： | 杨冬英,王奎华.任意圈层径向非均质土中桩的纵向振动特性[J].力学学报,2009,41(2):243-252. |
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| 作者姓名： | 杨冬英 王奎华 |
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| 作者单位： | 浙江大学建筑工程学院岩土工程研究所浙江大学建筑工程学院岩土工程研究所 |
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| 基金项目： | 国家自然科学基金资助项目(50879077)~~ |
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| 摘 要： | 研究三维轴对称条件下径向非均质土中桩的纵向振动. 首先将桩周土体沿径向分为任意圈层来考虑土体的径向非均质性，每个圈层土体均质; 然后结合边界条件和相邻圈层土体之间接触面上位移和应力连续条件，对任意圈层土体动力平衡方程由外而内逐层求解，进而利用桩-土完全耦合条件求解桩动力平衡方程，得到桩顶的频域响应解析解和时域响应半解析解; 最后通过对土体主要控制参数的研究，得出了土体径向非均匀性对桩-土动力响应的影响.
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| 关 键 词： | 桩-土耦合作用 径向非均质 任意圈层 复刚度 解析解 纵向振动 |
| 收稿时间： | 2007-04-11 |
| 修稿时间： | 2008-06-04 |
VERTICAL VIBRATION OF PILE IN RADIALLY INHOMOGENEOUS SOIL LAYERS |
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| Yang Dongying
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Wang Kuihua.VERTICAL VIBRATION OF PILE IN RADIALLY INHOMOGENEOUS SOIL LAYERS[J].chinese journal of theoretical and applied mechanics,2009,41(2):243-252. |
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| Authors: | Yang Dongying Wang Kuihua |
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| Institution: | *;2;+;3;MOE Key Laboratory of Soft Soils and Geoenvironmental Engineering;Zhejiang University;Hangzhou 310058;China;Suzhou University of Science and Technology;Suzhou 215011;China |
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| Abstract: | Based on three-dimensional axisymmetric soil model,the vertical dynamic response of pile in radi- ally inhomogeneous soil layers was investigated with the effect of soil inhomogeneity.First,the soil surrounding the pile was subdivided into arbitrary numerous annular zones,Second,the boundary conditions and cqntin- uum assumptions of displacement and stress between adjacent soil zones were developed.Third,the dynamic equilibrium equations of each soil zone are solved from outer to inner surrounding the pile.... |
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| Keywords: | pile-soil interaction radially inhomogeneity arbitrary numerous soil zones complex stiffness analytical solution vertical vibration |
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