Dynamic Interaction Between Fluid and Liquefying Soil under Earthquake Shaking

摘要

This paper describes the dynamics of a fluid layer and a submerged deposit of sand in a rigid rectangular container when subjected to horizontal shaking. It focuses on the interaction of the dynamic pressure field in the fluid domain and excess pore pressure changes in the sand undergoing liquefaction. This aspect of discussion is made possible through finite-element modelling and through closed-form solution derived for dynamic fluid pressures. The predicted performance is examined in light of centrifugal shaking-table testing with viscous scaling, giving rise to a range of insights into dynamic fluid-soil interaction.