Dynamic Response of Layered Cohesive Soil

Abstract

The realistic stress-strain relation of cohesive soil is applied to analyze the dynamic response of layered cohesive soil system during shear wave propagation. The cohesive soil is treated as a saturated elastic-viscoplastic body and assumed to be a K₀-consolidated state. The characteristics method was used for this anaysis, and the stress, strain and velocity under the ground were determined from the surface motion. From the analytical result, even if the surface response is the same between the elastic ground and elastic-viscoplastic ground, the stress, strain and velocity responses of the elastic-viscoplastic ground are greater than those of the elastic ground.