Abstract
The torsional vibrations of a cylindrical probe immersed in a soft sediment generate shear waves which react upon the probe. Measurements of the radiation impedance due to this reaction provide a method for estimating the dynamic rigidity of the sediment. An experimental model of such an instrument, which is operable at frequencies in the range from 900 to 3300 Hz, is described.
The results of some preliminary measurements in soft, saturated sediments, both in situ and in the laboratory, are presented. These results are used to estimate a shear wave speed which is compared with measurements of the speed of surface waves of the Stoneley type. Agreements are better than an order of magnitude. This points out a need for improvements in the precision of the method.
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© 1974 Plenum Press, New York
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Andrews, R.S., Wilson, O.B. (1974). Measurement of Viscoelastic Properties of Sediments Using a Torsionally Vibrating Probe. In: Hampton, L. (eds) Physics of Sound in Marine Sediments. Marine Science. Springer, Boston, MA. https://doi.org/10.1007/978-1-4684-0838-6_14
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DOI: https://doi.org/10.1007/978-1-4684-0838-6_14
Publisher Name: Springer, Boston, MA
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