A measurement system for shear speed using interface wave dispersion

Author

Greene, Jeanette ; Giard, Jennifer ; Potty, Gopu R. ; Miller, James H.

Author_Institution

Dept. of Ocean Eng., Univ. of Rhode Island, Narragansett, RI, USA

fYear

2011

Firstpage

211

Lastpage

216

Abstract

Recent research has highlighted the effect of shear on compressional wave attenuation and its frequency dependence and modal arrival times near the Airy Phase. Shear properties of sediments are directly related to the strength of the sediments in geotechnical applications. One of the most promising approaches to estimate shear speed is to invert the shear speed profile using the dispersion of seismo-acoustic interface (Scholte) waves that travel along the sediment-water boundary. A shear measurement system is being developed at the University of Rhode Island based on this concept and data collected during a sea-test is presented along with preliminary results.

Keywords

acoustic wave propagation; acoustic waves; sediments; seismic waves; underwater sound; water; Airy Phase; Scholte; University of Rhode Island; compressional wave attenuation; interface wave dispersion; sediment-water boundary; seismo-acoustic interface waves; shear measurement system; shear speed; Approximation methods; Attenuation; Dispersion; Fluids; Sea measurements; Sediments; Sonar equipment; Scholte Waves; Shear waves;

fLanguage

English

Publisher

ieee

Conference_Titel

Ocean Electronics (SYMPOL), 2011 International Symposium on

Conference_Location

Kochi

Print_ISBN

978-1-4673-0263-0

Type

conf

DOI

10.1109/SYMPOL.2011.6170521

Filename

6170521