STP1190: Evaluation of Shear Strength and Dilatancy Behavior of Reinforced Soil from Direct Shear Tests

    Bauer, GE
    Professor, Center for Geosynthetics Research Information and Development (C-GRID)Carleton University, Ottawa,

    Zhao, Y
    Ph. D. Student, Carleton University, Ottawa,

    Pages: 14    Published: Jan 1993


    Abstract

    In order to evaluate the shear strength and dilatancy behavior of coarse granular soils reinforced with geogrid a large direct shear apparatus (1000×1000×940 mm) was built. A series of shear tests were carried out to study the effect of geogrid orientation and soil volume changes on shear strength. A numerical model is proposed to calculate the shear strength increase. This is verified by the experimental results. Tensile strains in the geogrid can also be calculated using this model.

    Keywords:

    Direct shear test, reinforced soil, shear strength, soil dilatancy, geogrid, tensile strain


    Paper ID: STP24318S

    Committee/Subcommittee: D35.05

    DOI: 10.1520/STP24318S


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