Volume 23, Issue 4 (December 2000)

    New Tool for Shear Wave Velocity Measurements in Model Tests

    (Received 23 June 1999; accepted 19 April 2000)

    CODEN: GTJOAD

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    Abstract

    A method for measuring the shear wave velocity (Vs) of soil in a centrifuge model using a “mini-air hammer” is presented. Propagation of shear waves in a model soil profile was recorded in-flight by a vertical array of four accelerometers placed at different depths. Shear wave velocities were measured at different centrifugal accelerations for Nevada sand and for peaty organic soil. The Vs measured in the centrifuge was in excellent agreement with the Vs measured using piezo-ceramic bender element tests on these soils in a triaxial device. The value of the Vs measurements is demonstrated by typical analysis results for a centrifuge model of horizontally layered peaty organic soil and Nevada sand subjected to simulated earthquake shaking. Site response analyses using the measured shear wave velocities as input parameters produced good agreement with the measured site response.


    Author Information:

    Arulnathan, R
    Senior staff engineer, URS, Oakland, CA

    Boulanger, RW
    Associate professor, professor, and associate development engineer, University of California, Davis, CA

    Kutter, BL
    Associate professor, professor, and associate development engineer, University of California, Davis, CA

    Sluis, WK
    Associate professor, professor, and associate development engineer, University of California, Davis, CA


    Stock #: GTJ11065J

    ISSN: 0149-6115

    DOI: 10.1520/GTJ11065J

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    Author
    Title New Tool for Shear Wave Velocity Measurements in Model Tests
    Symposium , 0000-00-00
    Committee D18