Study on the Biot-Stoll model for porous marine sediments

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概要

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• The Biot-Stoll model is useful for analyzing the acoustic wave propagation in porous marine sediments. However, the practical application of the model is not easy, because 13 physical parameters are required to apply it, and the physical phenomena in this model are difficult to understand. In this study, equivalent circuits for the plane longitudinal wave propagation in porous media are proposed for easy understanding of the physical phenomena. Also, practical approximated equations for the longitudinal wave velocity and attenuation are proposed to simplify practical application of the Biot-Stoll model. Then, simpler models, such as the Wood model, the Gassmann model, and the Biot-Stoll model without frame moduli can be used within limited ranges of frequency and porosity to approximate the exact Biot-Stoll model. Therefore, the ranges of frequency and porosity applicable to some simple acoustic models are obtained to simplify practical application of the Biot-Stoll model.

• 社団法人日本音響学会の論文

著者

• Kimura Masao

  School Of Marine Science And Technology Tokai University

関連論文

• Acoustic Wave Reflection from Water-saturated and Air-saturated Sediments
• Study on the Biot-Stoll model for porous marine sediments
• Grain Bulk Modulus of Marine Sediment
• Acoustic wave reflection from the transition layer of surficial marine sediment
• Shear Wave Velocity in Marine Sediment

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