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

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

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

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


Pages: 12    Published: Jan 1999


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Source: STP1350-EB


Abstract

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.


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

Paper ID: STP13311S
Committee/Subcommittee: D18.14
DOI: 10.1520/STP13311S
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