| VERTICAL VIBRATION ANALYSIS OF AXISYMMETRIC SATURATED SOIL |
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| 作者姓名： | 蔡袁强 徐长节 郑灶锋 吴大志 |
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| 作者单位： | Institute of Geotechnical Engineering，Institute of Geotechnical Engineering，Institute of Geotechnical Engineering，Institute of Geotechnical Engineering Zhejiang University，Hangzhou 310027，P.R.China，Zhejiang University，Hangzhou 310027，P.R.China，Zhejiang University，Hangzhou 310027，P.R.China，Zhejiang University，Hangzhou 310027，P.R.China |
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| 摘 要： | Based on Biot’s dynamic consolidation equations,by means of Laplace-Hankel transform technology,the integral solutions of stress and displacement in saturated soil with subjacent rock-stratum under axisymmetric arbitrary excitations were derived.In- fluence of the reflected wave generated by the boundary was revealed.Numerical results indicate that the vibration frequency has some effect on the vertical displacement of satu- rated soil.The vertical displacement at the surface of saturated soil lags in phase with the load.Furthermore,the dynamic permeability coefficient of saturated soil has significant effect on the vertical displacement at the initial stage of load applied,but when the load becomes stable,the effect is inapparent.
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| 关 键 词： | 垂直振动分析 饱和土壤 动力合并方程 Laplace-Hankel变换 |
| 收稿时间： | 2004-11-18 |
| 修稿时间： | 2005-06-17 |
Vertical vibration analysis of axisymmetric saturated soil |
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| Yuan-qiang Cai,Chang-jie Xu,Zao-feng Zheng,Da-zhi Wu.VERTICAL VIBRATION ANALYSIS OF AXISYMMETRIC SATURATED SOIL[J].Applied Mathematics and Mechanics(English Edition),2006,27(1):83-89. |
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| Authors: | Yuan-qiang Cai Chang-jie Xu Zao-feng Zheng Da-zhi Wu |
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| Institution: | Institute of Geotechnical Engineering, Zhejiang University, Hangzhou 310027, P. R. China |
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| Abstract: | Based on Biot’s dynamic consolidation equations, by means of Laplace-Hankel transform technology, the integral solutions of
stress and displacement in saturated soil with subjacent rock-stratum under axisymmetric arbitrary excitations were derived.
Influence of the reflected wave generated by the boundary was revealed. Numerical results indicate that the vibration frequency
has some effect on the vertical displacement of saturated soil. The vertical displacement at the surface of saturated soil
lags in phase with the load. Furthermore, the dynamic permeability coefficient of saturated soil has significant effect on
the vertical displacement at the initial stage of load applied, but when the load becomes stable, the effect is inapparent.
Project supported by the National Natural Science Foundation of China (No. 50478081) |
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| Keywords: | vertical vibration analysis arbitrary excitation saturated soil |
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