| 饱和土中摩擦桩竖向振动解析解及应用 |
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| 引用本文： | 李强,郑辉,王奎华.饱和土中摩擦桩竖向振动解析解及应用[J].工程力学,2011(1):157-162,170. |
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| 作者姓名： | 李强 郑辉 王奎华 |
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| 作者单位： | 浙江海洋学院土木系;中国石化浙江石油分公司;浙江大学软弱土与环境土工教育部重点实验室; |
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| 基金项目： | 国家自然科学基金项目(50879077); 浙江省科技厅重点项目(2007C13065) |
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| 摘 要： | 采用与频率相关的桩土接触面模型建立了三维轴对称条件下摩擦桩在饱和土中的竖向耦合振动模型,通过势函数分解法和分离变量法求解了饱和土动力固结方程,利用桩土耦合条件得到摩擦桩竖向振动解,对桩周剪应力分布、桩顶的频率和时域响应进行了参数研究.结果表明,桩底支承系数和桩土接触面动刚度对桩土荷载传递有明显影响,频率相关的阻尼系数可...
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| 关 键 词： | 岩土工程 桩基动力学 解析解 竖向振动 饱和土 摩擦桩 |
ANALYTICAL SOLUTION AND ITS APPLICATION OF VERTICAL VIBRATION OF A FRICTION PILE IN SATURATED SOIL |
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| LI Qiang,ZHENG Hui,WANG Kui-hua.ANALYTICAL SOLUTION AND ITS APPLICATION OF VERTICAL VIBRATION OF A FRICTION PILE IN SATURATED SOIL[J].Engineering Mechanics,2011(1):157-162,170. |
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| Authors: | LI Qiang ZHENG Hui WANG Kui-hua |
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| Affiliation: | LI Qiang1,ZHENG Hui2,WANG Kui-hua3(1.Department of Civil Engineering,Zhejiang Ocean University,Zhoushan,Zhejiang 316004,China,2.SINOPEC Zhejiang Oil Products Company,Hangzhou,Zhejiang 310009,3.Key Laboratory of Soft Soils and Geoenvironmental Engineering,Ministry of Education,Zhejiang University,Zhejiang 310058,China) |
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| Abstract: | A dynamic model of a friction pile embedded in saturated soil is established on the basis of interface model with a frequent-dependent damping between the pile and the soil.With the use of potential functions and a variable separation method,the pile dynamic response to an arbitrary vertical load is analytically derived in a closed form under the assumption of the imperfect contact between the pile and soil and an elastic bearing at the pile toe.Furthermore,a parametric study is conducted to find out the ma... |
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| Keywords: | geotechnical engineering pile dynamics analytical solution vertical vibration saturated soil friction pile |
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