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Comparison of the dynamic response of a saturated soil between two models

By comparing the dynamic responses of saturated soil to Biot’s and Yamamoto’s models, the properties of the two models have be pointed out. First of all, an analysis has been made for energy loss of each model from the basic equations. Then the damping of elastic waves in coarse sand and fine sand with loading frequency and soil’s parameters have been calculated and the representation of viscous friction and Coulomb friction in the two models has been concluded. Finally, the variations of loading wave damping and stress phase angles with water depth and soil’s parameters have been obtained as loading waves range in ocean waves.