Stress-Dependent Behavior of Artificially Structured and Reconstituted Marine Soils

AbstractVery few studies have addressed the systematic study on the stress-dependent behavior of cement/lime-treated structured and reconstituted soils from the viewpoint of the constrained modulus. The influence of cement/lime on the nonlinear stress-strain behavior is investigated with relation to the constrained modulus. Based on the idealized modulus-stress mode, the modulus-based parameters are defined and discussed taking into consideration cement/lime content and curing time. This contributes to establishing quantitatively the modulus-related correlations, such as ML-M0, m-ω, σvy′-σr′ and Cc-ML on structured soils. A proposed novel concept of ΔEoed is feasible to identify the effect of soil structure, and the variation in shape and position of stress-strain curves attributes to the soil structure developed with chemical reactions. The consolidation stress at the point of ΔEoed = 0 can be considered as the yield stress, and this is proved to be appropriate in contrast to the result determined by a p...