One and Three Dimensional, Three Phase Deformation in Soilby Thomas V. Edgar, Univ of Wyoming, WY, United States,
Abstract: An initially saturated soil exhibits two distinct deformation patterns as it drys. First, it deforms vertically until the soil begins to drain. Secondly , it deforms laterally as well as vertically as the pores drain. This paper presents a simple equilibrium thermodynamic analysis for the appropriate stress state variables and the associated strains. These stress state variables are based on macroscopic stresses which are easily determined. This analysis is extended to develop a constitutive relation which provides a continuous transition from saturated to unsaturated conditions.
Subject Headings: Soil deformation | Saturated soils | Drainage | Thermodynamics | Stress analysis | Strain | Soil properties | Soil pressure
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