Volume 12, Issue 1 (March 1989)

    Design of Laterally Loaded Driven Piles Using the Flat Dilatometer


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    The nonlinear subgrade reaction method (P-y curves) is widely used for the design of laterally loaded piles. This method replaces the soil reaction with a series of independent nonlinear Winkler springs.

    A preliminary semi-empirical approach for the determination of P-y curves using data obtained from a flat dilatometer test (DMT) is presented and evaluated. A brief description of the equipment, testing procedures, and the theory that enables the family of P-y curves to be determined are presented. The P-y curves are used as input for an existing finite-difference program, which calculates pile deflection versus depth at various lateral loads.

    An evaluation of the proposed method is presented using data from three full-scale laterally loaded test piles. A comparison and discussion are provided between the predicted and measured behavior of the piles during lateral loading.

    Author Information:

    Robertson, PK
    Professor, University of Alberta, Edmonton, Alberta

    Davies, MP
    Geotechnical engineer, Geopacific Consultants Ltd., Burnaby, British Columbia

    Campanella, RG
    Professor, University of British Columbia, Vancouver, British Columbia

    Stock #: GTJ10671J

    ISSN: 0149-6115

    DOI: 10.1520/GTJ10671J

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    Title Design of Laterally Loaded Driven Piles Using the Flat Dilatometer
    Symposium , 0000-00-00
    Committee D18