Research Article
Jul 1976
Acoustic Emission Behavior of Granular Soils
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VIEW THE REPLYAuthors: Robert M. Koerner, M.ASCE, John W. Curran, W. Martin McCabe, and Arthur E. Lord Jr.Author Affiliations
Publication: Journal of the Geotechnical Engineering Division
Volume 102, Issue 7
Abstract
The study is subdivided into three phases: granular soils, cohesive soils, and field monitoring; the present paper addresses itself to the first phase of the overall project. Acoustic emissions are internally generated sounds that occur when a soil sample is stressed and subsequently deforms. The major conclusion of this research is that the acoustic emission response is directly related to this deformation and can be used in lieu of same in both laboratory and field situations. Other significant results as related to granular soils are the following: (1)Acoustic emission wave velocities are from 400fps-800fps (120m/s-240m/s); (2)acoustic emission frequencies range from 500 Hz - 8 kHz; (3)acoustic emission attenuation is strongly dependent on frequency and can be as high as 300dB/ft (10 dB/cm) at 16 kHz; (4)angular particles produce more emissions than rounded ones; (5)well-graded soils emit more acoustic emissions than poorly graded soils; and (6)particle size is not significant in the acoustic emission response.
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Published In
Journal of the Geotechnical Engineering Division
Volume 102 • Issue 7 • July 1976
Pages: 761 - 773
Copyright
© 1976 American Society of Civil Engineers.
History
Published in print: Jul 1976
Published online: Feb 11, 2021
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Authors
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Robert M. Koerner, M.ASCE
Prof. of Civ. Engrg.; Drexel Univ., Philadelphia, Pa
John W. Curran
Grad. Research Asst.; Physics Dept., Drexel Univ., Philadelphia, Pa
W. Martin McCabe
Grad. Research Asst.; Dept. of Civ. Engrg., Drexel Univ., Philadelphia, Pa
Arthur E. Lord Jr.
Prof. of Physics; Drexel Univ., Philadelphia, Pa
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