| 纵向振动桩侧壁切应力频率域解及其应用 |
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| 引用本文： | 刘东甲. 纵向振动桩侧壁切应力频率域解及其应用[J]. 岩土工程学报, 2001, 23(5): 544-546 |
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| 作者姓名： | 刘东甲 |
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| 作者单位： | 合肥工业大学资源与环境科学系!安徽合肥230009； |
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| 摘 要： | 利用Fourier变换 ,得到纵向振动桩在简化条件下侧壁切应力的频率域表达式 ,应用该表达式获得桩周土的等效刚度系数k和等效阻尼系数c的计算式 ,它们是桩周土剪切波速和密度、桩半径和振动频率的函数 ,把它们用于桩瞬态纵向振动计算 ,并与工程桩反射波法动测曲线进行对比 ,两者有较好的一致性
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| 关 键 词： | 桩 瞬态纵向振动 切应力 频率域 Fourier变换 |
| 文章编号： | 1000-4548(2001)05-0544-03 |
| 修稿时间： | 2001-01-08 |
Frequency-domain solution of shear stress along pile-soil interface for longitudinal vibration of piles and its application |
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| LIU Dongjia. Frequency-domain solution of shear stress along pile-soil interface for longitudinal vibration of piles and its application[J]. Chinese Journal of Geotechnical Engineering, 2001, 23(5): 544-546 |
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| Authors: | LIU Dongjia |
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| Affiliation: | Dept. of Natural Resources and Environmental Science Hefei University of Technology Hefei 230009 China |
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| Abstract: | A frequency domain expression of shear stress along pile soil interface is derived by using Fourier transform for transient longitudinal vibration of piles.Stiffness k and damping coefficient c of the soil around the piles are obtained by applying the expression,which are functions of shear wave velocity and density of the soil,radius and vibration frequency of the pile.Good agreement between simulated and measured curves of engineering piles indicates that the expressions of k and c are very efficient for calculating transient longitudinal vibration of piles. |
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| Keywords: | pile transient longitudinal vibration shear stress frequency domain Fourier transform |
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