ACOUSTIC EMISSION MONITORING OF EARTH DAM STABILITY

In a study of the possibility of sounds being emitted by deforming soils, acoustic emission concepts, common to the monitoring of nuclear pressure vessels and massive rock structures such as tunnels and shafts, were used in the development of techniques which require a transducer or accelerometer for pickup and conversion of the acoustic emission wave into an electric signal. This is then amplified, filtered and recorded in such a manner as to have a quantifiable value. This technique requires considerable testing and a number of modifications to standard acoustic monitoring procedures. The details are outlined of 8 earth dams which are being or have been monitored using the acoustic emission techniques. The studies show that earth dams that do not generate acoustic emissions are not deforming; those with moderate emissions are deforming slightly and those that generate large amounts of emission are deforming to a high degree and are to be considered ustable.

• Corporate Authors:

  IPC Electrical Electronic Press Limited

  Dorset House Stamford Street
  London SE1 9LU,   England 

  IPC Electrical Electronic Press Limited

  Dorset House Stamford Street
  London SE1 9LU,   England 
• Authors:
  • Koerner, R M
  • LORD, A E
• Publication Date: 1976-4

Media Info

• Features: Figures; References;
• Pagination: p. 45-49
• Serial:
  • Water Power and Dam Construction
  • Volume: 28
  • Issue Number: 4

Subject/Index Terms

• TRT Terms: Accelerometers; Acoustic measuring instruments; Acoustic properties; Acoustics; Deformation; Earth dams; Monitoring; Pollutants; Soils; Stability (Mechanics); Transducers
• Uncontrolled Terms: Soil deformation
• Old TRIS Terms: Acoustic measurement
• Subject Areas: Geotechnology; Highways;

Filing Info

• Accession Number: 00135933
• Record Type: Publication
• Files: TRIS
• Created Date: Sep 21 1976 12:00AM