ACOUSTIC EMISSION BEHAVIOR OF SAND AS USED IN FOUNDATION BEARING CAPACITY

The concept of utilizing acoustic emissions to signal the occurrence of deformations and possible failure in geotechnical structures has a long history; for example, miners have long used rock noise as a measure of the safety of a mine, but their interpretations have been largely based on judgment and experiment. In this paper and an extensive series of related papers, an attempt has been made to quantify the intensity of acoustic emissions in soils subjected to various loading conditions and to correlate these measured intensities with the mechanical behavior of the soil. The paper addresses the specific problem of acoustic emissions in sand that is used as a foundation material. It was found that sand with well-distributed particle sizes (rather than particles of predominately one size and angular particles (as opposed to rounded), produce higher levels of acoustic emissions under stress, but the effect of particle size was not significant. This work is a welcome extension and quantification of a well-known concept, and it has the potential for broad application as a procedure for monitoring the stability of building foundations, as well as slopes, dams, tunnels, and a number of other geotechnical works.

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  • Corporate Authors:

    American Society for Nondestructive Testing

    914 Chicago Avenue
    Evanston, IL  USA  60202
  • Authors:
    • Lord Jr, A E
    • KOERNER, R M
    • McCabe, W M
  • Publication Date: 1976-5

Media Info

  • Pagination: p. 103-108
  • Serial:
    • Materials Evaluation
    • Volume: 24
    • Issue Number: 5
    • Publisher: American Society for Nondestructive Testing
    • ISSN: 0025-5327

Subject/Index Terms

Filing Info

  • Accession Number: 00148869
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Apr 13 1977 12:00AM