Nondestructive Laboratory Measurement of Geotechnical and Geoacoustic Properties Through Intact Core-Liner

    Published: Jan 1999

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    High-resolution automated measurement of the geotechnical and geoacoustic properties of soil at the U.S. Geological Survey (USGS) is performed with a state-of-the-art multi-sensor whole-core logging device. The device takes measurements, directly through intact sample-tube wall, of p-wave acoustic velocity, of soil wet bulk density, and magnetic susceptibility. This paper summarizes our methodology for determining soil-sound speed and wet-bulk density for material encased in an unsplit liner. Our methodology for nondestructive measurement allows for rapid, accurate, and high-resolution (1 cm-spaced) mapping of the mass physical properties of soil prior to sample extrusion.


    automation, bulk density, core liner, geotechnical, geoacoustic, Lambert attenuation, logger, robotics, sediment, soil, p-wave, sound velocity

    Author Information:

    Kayen, RE
    Research civil engineer, U.S. Geological Survey, Menlo Park, CA

    Edwards, BD
    Research geologist, U.S. Geological Survey, Menlo Park, CA

    Lee, HJ
    Research civil engineer, U.S. Geological Survey, Menlo Park, CA

    Committee/Subcommittee: D18.14

    DOI: 10.1520/STP13311S

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