Elastic Behavior of Cohesionless Soil

Abstract

Elastic properties of a sand are studied in triaxial compression tests. It is shown that the elastic properties are only a function of the state of the soil as expressed by stress and void ratio; and that for samples with a given initial void ratio, the elastic properties vary both with deviator stress and mean normal stress. These elastic properties become anisotropic when a soil element is sheared, and this anisotropy appears to be a function of the stress ratio. Finally, an incremental elastic stress-strain relationship is presented.