Combined TDR and P-Wave Velocity Measurements for the Determination of In Situ Soil Density—Experimental Study

    Volume 28, Issue 6 (November 2005)

    ISSN: 0149-6115

    CODEN: GTJOAD

    Published Online: 31 August 2005

    Page Count: 11


    Fratta, D
    Assistant Professor, University of Wisconsin-Madison, Madison, WI

    Alshibli, KA
    Joint Assistant Professor, Louisiana State University and Southern University, Baton Rouge, LA

    Tanner, WM
    Project Engineer, Nova Geotechnical and Environmental, Kennesaw, GA

    Roussel, L
    Research Graduate Assistant, Louisiana State University, Baton Rouge, LA

    (Received 17 January 2005; accepted 28 March 2005)

    Abstract

    This paper summarizes a new nondestructive approach for the evaluation of soil density and water content. This new measurement methodology involves evaluating the dielectric permittivity and the P-wave velocity in soils as the water content is increased. These values are then related to the volumetric water content, porosity, and skeleton shear stiffness, which are needed to back-calculate the density and water content of the tested soil specimens. Experimental laboratory results are briefly summarized. These test results show a potential for developing a new device. Electronic equipment and sensors for the proposed device include a TDR system, miniature piezoelectric accelerometers, signal conditioner system, and oscilloscope for data acquisition.


    Paper ID: GTJ12293

    DOI: 10.1520/GTJ12293

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    Author
    Title Combined TDR and P-Wave Velocity Measurements for the Determination of In Situ Soil Density—Experimental Study
    Symposium , 0000-00-00
    Committee D18