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| ANALYTICAL STUDY ON VERTICAL VIBRATION AMPLIFICATION OF A VISCOELASTIC SOIL LAYER |
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Abstract Based on Biot¢s theory and the concept of homogeneous porous fluid，the function of vertical vibration amplification is described as a function of degree of saturation，soil properties，layer thickness and loading frequency. Numerical examples are given to illustrate the influence of saturation，soil properties，layer thickness，coefficient of viscoelasticity，and frequency on the motion amplification. The achieved results indicate that the influence of saturation，coefficient of viscoelasticity and layer thickness on the vertical vibration amplification are different. Some valuable conclusions are drawn.
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Received: 12 July 2004
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