STP892

    Unsaturated Soil Consolidation Theory and Laboratory Experimental Data

    Published: Jan 1986


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    Abstract

    The volume change process of an unsaturated soil was considered as a transient flow problem with water and air flowing simultaneously under an applied stress gradient. laboratory experiments were performed to study the volume change behavior of unsaturated soils. Several compacted kaolin specimens were tested using modified Anteus oedometers and triaxial cells. Theoretical analyses were also made to best-fit the results from laboratory experiments. The fitting was accomplished by approximating the compressibility coefficients and adjusting the coefficients of permeability. The comparisons of the results obtained from the theory and the laboratory yield to a similar behavior of volume changes with respect to time.

    Keywords:

    unsaturated soil, volume change, consolidation, two-phase flow


    Author Information:

    Fredlund, DG
    Professor and Research Engineer, University of Saskatchewan, Saskatoon, SK

    Rahardjo, H
    Professor and Research Engineer, University of Saskatchewan, Saskatoon, SK


    Paper ID: STP34613S

    Committee/Subcommittee: D18.05

    DOI: 10.1520/STP34613S


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