ANALYSIS OF AXIAL STRAIN-INDUCED BY 3-D CONSOLIDATION OF COHESIVE SOILS

This paper presents a simplified approach for the analysis of axial st rain induced by three-dimensional consolidation of cohesive soils. The axial strain is divided into a constant volume component and a consol idation component. A relevant undrained stress-strain relationship is required to determine the constant volume component. A theoretical for mulation is developed for the evaluation of the consolidation componen t. Predictions of the axial strain accompanying true triaxial laborato ry tests for a variety of stress patterns correlate sufficiently well with the measured data. The proposed method is potentially applicable in conjunction with a finite difference scheme to analyze the time-dep endent response of pile groups subjected to static vertical loading. ( C) 1998 John Wiley & Sons, Ltd.