DEMONSTRATION OF ACOUSTICAL UNDERGROUND SURVEY SYSTEM IN THE WASHINGTON METROPOLITAN AREA

The purpose of the subject study was to demonstrate current capabilities of Acoustical Surveying in conjunction with tunnelling operations to aid in geologic determination and prediction. The Holosonics Acoustical Survey system served as the basic equipment for the survey program. Peripheral equipment such as a fast transient recorder, perforated paper tape punch and CRT storage monitor was used to implement the system. Interfacing and field packaging were fabricated by Holosonics to allow use as an integral system. New computer software was applied to handle the changed input format and to refine the output. Five-hundred-and-ten feet of drill hole were logged in five separate holes requiring four field mobilizations. Four short holes totalling 210 feet were logged under the equipment and software calibration phase. The fifth hole was a 270 feet long cored hole.

  • Supplemental Notes:
    • Supersedes PB-247221.
  • Corporate Authors:

    Massachusetts Institute of Technology

    Department of Civil Engineering, 77 Massachusetts Avenue
    Cambridge, MA  USA  02139

    Federal Highway Administration

    1200 New Jersey Avenue, SE
    Washington, DC  USA  20590
  • Authors:
    • Price, T O
  • Publication Date: 1975-6

Media Info

  • Pagination: 136 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00133227
  • Record Type: Publication
  • Source Agency: National Technical Information Service
  • Report/Paper Numbers: FHWA-RD-75- 82 Final Rpt.
  • Contract Numbers: NSF-GI-41356
  • Files: NTIS, TRIS, USDOT
  • Created Date: Jun 23 1981 12:00AM