Energy Dissipation in Nearly Saturated Poroviscoelastic Soil Columns during Quasi-Static Compressional Excitations

摘要: AbstractThis paper presents a theoretical investigation on the energy dissipation in nearly saturated poroviscoelastic soil column under quasi-static compressional excitations. Different components of are evaluated and compared. The magnitude fluid- induced is primarily function normalized excitation frequency Ω. For small values Ω, drained fully relaxed essentially behaves as dry with negligible pore pressure. such column, fluid-induced negligible, total damping ratio same that solid skeleton. very high loaded excitation-generated pressure decreases fluid becomes more compressible. gradient only exists thin boundary layer near drainage boundary, where occurs induces dissipation, whereas re...