STP883

    The Deformation Properties of Warm Permafrost

    Published: Jan 1985


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    Abstract

    Six pressuremeter tests and one multistage triaxial creep test were conducted on a prepared frozen sand at −2.5 and −3°C, respectively. The pressuremeter study suggested that the model of incompressible power-law fluid, which is sometimes used in the numerical modelling of frozen-ground geotechnical problems, would not provide a suitable “simplified constitutive relation” on which we could base the design of a new standard pressurementer test for discerning long-term creep properties of warm permafrost. The multistage triaxial creep test showed a correlation between the decreasing or increasing in volume of the specimen and the attenuating or nonattenuating character of its axial creep behavior.

    Keywords:

    frozen soils, creep, triaxial tests, frozen sands, pressurementer tests, multistage triaxial tests


    Author Information:

    Shields, DH
    Professor, professor, adjunct professor, and graduate student, University of Manitoba, Winnipeg, Manitoba

    Domaschuk, L
    Professor, professor, adjunct professor, and graduate student, University of Manitoba, Winnipeg, Manitoba

    Man, C-S
    Professor, professor, adjunct professor, and graduate student, University of Manitoba, Winnipeg, Manitoba

    Kenyon, RM
    Professor, professor, adjunct professor, and graduate student, University of Manitoba, Winnipeg, Manitoba


    Paper ID: STP36353S

    Committee/Subcommittee: D18.19

    DOI: 10.1520/STP36353S


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