| 瞬态横向振动桩的Winkler参数 |
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| 引用本文： | 刘东甲,王建国.瞬态横向振动桩的Winkler参数[J].岩土力学,2003,24(6):922-926. |
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| 作者姓名： | 刘东甲 王建国 |
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| 作者单位： | 1. 合肥工业大学 资源与环境工程学院，安徽 合肥 230009； 2.合肥工业大学 土木建筑工程学院， 安徽 合肥 230009 |
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| 基金项目： | 安徽省自然科学基金项目(编号:03044502) |
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| 摘 要： | 应用Fourier变换，推导了瞬态横向振动桩桩周土阻力在频率域中的Baranov公式，并得到瞬态横向振动桩Winkler参数k和c的表达式。该式因计算复杂不便于桩瞬态横向振动的计算，笔者应用Hankel函数渐近展开式得到k和c的简化式。对桩的瞬态横向振动的计算表明，简化式的精度满足要求，且大大提高了计算速度。
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| 关 键 词： | 桩 瞬态横向振动 Winkler参数 Fourier变换 |
| 文章编号： | 1000-7598-(2003)06-0922-05 |
| 收稿时间： | 2002-08-16 |
| 修稿时间： | 2002年8月16日 |
Winkler parameters k and c for transient lateral vibrating piles |
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| LIU Dong-jia,WANG Jian-guo.Winkler parameters k and c for transient lateral vibrating piles[J].Rock and Soil Mechanics,2003,24(6):922-926. |
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| Authors: | LIU Dong-jia WANG Jian-guo |
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| Institution: | 1. School of Resources and Environmental Engineering, Hefei University of Technology, Hefei 230009, China; 2. School of Civil Engineering and Architecture, Hefei University of Technology, Hefei 230009, China |
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| Abstract: | Baranov formula in frequency domain for transient lateral vibrating piles is derived by the Fourier transform. Expressions of Winkler parameters k and c are derived by the Baranov formula. Because the rigorous expressions are complicated, they are not suitable for calculating transient lateral vibration of piles, and for this reason the simplified expressions of k and c are derived by asymptotic expansion of the Hankel function. Mobility curve and velocity one at pile head, when k and c are calculated by the rigorous expressions, are compared with those calculated by the simplified ones. Good agreement between the two results indicates that the simplified expressions are effective for transient lateral response of piles. |
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| Keywords: | pile transient lateral vibration Winkler parameter Fourier transform |
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