DEMONSTRATION OF ACOUSTICAL SURVEY SYSTEM. WASHINGTON METRO AREA TRANSIT AUTHORITY

This report reviews the techniques and results of the demonstration of the Holosonics Acoustical Survey System in a tunnel of the Washington Metro Area Transit Authority subway system. Acoustical data from a small sampling--a drill hole--was related to the actual conditions of the large volume of rock to detect geological and man-made anomalies. This report also discussed the computer equipment, systems applications and data processing methods involved in the acoustical probe.

• Corporate Authors:

  Massachusetts Institute of Technology

  Department of Civil Engineering, 77 Massachusetts Avenue
  Cambridge, MA  United States  02139

  National Science Foundation

  1800 G Street, NW
  Washington, DC  United States  20550
• Authors:
  • Price, T O
• Publication Date: 1975-6

Media Info

• Pagination: 65 p.

Subject/Index Terms

• TRT Terms: Acoustic detectors; Acoustic measuring instruments; Acoustic signature; Acoustics; Data collection; Geological events; Geological surveying; Geophysical prospecting; Information processing; Seismicity; Structural design; Subways; Surveys; Tunnels
• Identifier Terms: Washington Metropolitan Area Transit Authority
• Uncontrolled Terms: Tunnel design
• Old TRIS Terms: Acoustic detection; Acoustic measurement; Geological conditions; Geophysical surveys; Seismic surveys
• Subject Areas: Bridges and other structures; Construction; Geotechnology; Public Transportation;

Filing Info

• Accession Number: 00094292
• Record Type: Publication
• Source Agency: National Technical Information Service
• Report/Paper Numbers: Final Rpt., NSF/RA/T-75/038
• Contract Numbers: NSF-GI-41356
• Files: TRIS
• Created Date: Mar 29 1981 12:00AM