Showing papers by "Delwyn G. Fredlund published in 1984"

Coupled Three-dimensional Consolidation Theory of Unsaturated Porous Media

Abstract: A three-dimensional, two-phase flow, consolidation theory is presented for unsaturated porous media The continuity and equilibrium conditions are coupled in deriving the consolidation equations Their application to a one-dimensional case is illustrated

General limit equilibrium method for lateral earth force

Abstract: The calculation of the lateral earth force using the limit equilibrium method of slices is an indeterminate problem. An assumption regarding the direction or the magnitude of certain forces, or the...

Consolidation of Unsaturated Porous Media

Abstract: The necessary physical relations are presented for the formulation of a theory of consolidation model for unsaturated soils. This model is an extension of the saturated soil consolidation theory commonly used in geotechnical engineering. The model involves the simultaneous solution of two partial differential equations; one for the water phase and one for the air phase (i.e., two phase flow approach). The model allows the computation of pore-air and pore-water pressure as a function of time and space. These pressures can be substituted into the constitutive relations for the soil to compute void ratio, water content and degree of saturation.