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Linear Elastic Wave Propagation in Unsaturated, Unconsolidated Soils

  1. Bettina Albers*

Article first published online: 5 MAR 2010

DOI: 10.1002/pamm.200910226

Issue

PAMM

PAMM

Special Issue: 80th Annual Meeting of the International Association of Applied Mathematics and Mechanics (GAMM), Gdansk 2009; Co-editor: Prof. Krzysztof J. Kalinski

Volume 9, Issue 1, pages 507–508, December 2009

Additional Information

How to Cite

Albers, B. (2009), Linear Elastic Wave Propagation in Unsaturated, Unconsolidated Soils. PAMM, 9: 507–508. doi: 10.1002/pamm.200910226

Author Information

  1. Chair of SoilMechanics and Geotechnical Engineering, TU Berlin, Sekr. TIB 1-B7, Gustav-Meyer-Allee 25, D-13355 Berlin, Germany

*Phone: +49 30 314 72061, Fax: +49 30 314 72343

Publication History

  1. Issue published online: 5 MAR 2010
  2. Article first published online: 5 MAR 2010

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Abstract

By means of a macroscopic linear model for a poroelastic medium with three deformable components the acoustic behavior of four unconsolidated soil types, filled by water and air, is studied. Necessary material parameters are mainly gathered from the German standard DIN 4220. It provides some useful parameters, as for example, van Genuchten parameters, for thirty-one different soil types including sands, silts and clays. There appear four body waves: three longitudinal waves and one shear wave. The slowest compressional wave does only exist if at least two pore fluids appear and is driven by the capillary pressure between the pore fluids. The wave analysis yields the dependence of velocities and attenuations of these waves on the saturation and on the frequency. This is compared to the so far most frequently studied case of partially saturated sandstones. (© 2009 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim)

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