Undrained Response of Clay in Hollow Cylinder Expansion Tests

    Volume 34, Issue 1 (January 2011)

    ISSN: 0149-6115

    CODEN: GTJOAD

    Published Online: 18 October 2010

    Page Count: 13


    Silvestri, Vincenzo
    Professor, Dept. of Civil, Geological, and Mining Engineering, Ecole Polytechnique, Montréal, QC

    Diab, Riad
    Senior Geotechnical Engineer, Pinto Engineering, Inc., York, PA

    Abou Samra, Ghassan
    Graduate Research Assistant, Dept. of Civil, Geological, and Mining Engineering, Ecole Polytechnique, Montréal, QC

    Bravo-Jonard, Christian
    Graduate Research Assistant, Dept. of Civil, Geological, and Mining Engineering, Ecole Polytechnique, Montréal, QC

    (Received 25 September 2009; accepted 17 September 2010)

    Abstract

    This paper presents the results of undrained plane strain expansion tests of hollow cylindrical specimens of normally consolidated clay. The stress-strain curves and the total stress paths are first deduced from the experimental radial pressure-expansion relationships by using Nadai’s total stress approach. The stress-strain curves are then compared with theoretical relations based on the modified Cam clay theory. The effective stress paths, which are obtained by subtracting measured pore water pressure from the total stress paths, are also compared with those derived from the modified Cam clay. Finally, the undrained shear strengths, calculated from both Nadai’s approach and the modified Cam clay, are compared with values determined by using an expression based upon an elastic perfectly plastic model.


    Paper ID: GTJ102749

    DOI: 10.1520/GTJ102749

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    Author
    Title Undrained Response of Clay in Hollow Cylinder Expansion Tests
    Symposium , 0000-00-00
    Committee D18