Mass-Spring-Damping Model of Saturated Sands

Abstract:

Based on the theory of elastic wave in saturated soils, the vertical vibration of a rigid circular footing resting on saturated sands is studied to obtain its analytical solution of dynamic compliance coefficients. Considering the role of water in the soil, the mass-spring-damping model of saturated sands is proposed to realize a practical way for engineering. And the stiffness and damping coefficients of model are calculated by reciprocity law equation. Compared with the solution of elastic half-space with the same Poisson’s ratio, the coefficients of the saturated sands are quite large. To comply with engineering practice, the approximate formula should be modified with multiplying them by factor in the Code for Dynamic Machine Foundation Design.

• Periodical: Applied Mechanics and Materials (Volumes 170-173)
• Pages: 153-158
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.170-173.153
• Online since: May 2012
• Authors: Li Xiang Wu, Xing Min Hou, Jia Zhang
• Keywords: Damping Coefficients, Mass-Spring-Damping, Reciprocity Law Equation, Saturated Sands, Stiffness Coefficients

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