Use of a Differential Pressure Transducer for the Monitoring of Soil Volume Change in Cyclic Triaxial Test on Unsaturated Soils

    Volume 30, Issue 3 (May 2007)

    ISSN: 0149-6115

    CODEN: GTJOAD

    Published Online: 1 October 2006

    Page Count: 7


    Cui, Y-J
    Ecole Nationale des Ponts et Chaussees, (CERMES), Citý Descartes, Champs-sur-Marne,

    Tang, A-M
    Ecole Nationale des Ponts et Chaussees, (CERMES), Citý Descartes, Champs-sur-Marne,

    Marcial, D
    Universidad Central de Venezuela, Caracas,

    Terpereau, J-M
    SNCF, Paris,

    Marchadier, G
    Direction de l'Ingýnierie, SNCF, La Plaine Saint-Denis,

    Boulay, X
    Ecole Nationale des Ponts et Chaussees, (CERMES), Citý Descartes, Champs-sur-Marne,

    (Received 13 March 2006; accepted 18 August 2006)

    Abstract

    A new experimental setup using a differential pressure transducer was developed, that enables the monitoring of volume changes in cyclic triaxial tests on unsaturated soils. Calibration tests were performed in order to analyze the performance of the setup, especially in terms of loading frequencies. Based on calibration results, a low frequency of 0.05 Hz was adopted for the tests carried out on the unsaturated loess from northern France. Five levels of water content were considered in the tests. The obtained results have confirmed the efficiency of the new system for volume change monitoring under cyclic loading. The effect of water content on the cyclic behavior of loess was clearly evidenced. Finally, some suggestions were made to improve the accuracy of the system.


    Paper ID: GTJ100539

    DOI: 10.1520/GTJ100539

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    Author
    Title Use of a Differential Pressure Transducer for the Monitoring of Soil Volume Change in Cyclic Triaxial Test on Unsaturated Soils
    Symposium , 0000-00-00
    Committee D18