ACOUSTIC EMISSION BEHAVIOR OF GRANULAR SOILS

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 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 400 fps-800 fps (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 high as 300 dB/ft (10 dB/em) 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. /ASCE/

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00141321
  • Record Type: Publication
  • Report/Paper Numbers: ASCE #12239 Proceeding
  • Files: TRIS
  • Created Date: Oct 26 1976 12:00AM