Design and Fabrication of Instrumentation for Remote Sealing of Underground Coal Mine Passageways

Details

• Personal Author:
  Berry DR ; Brunelle BC ; Monaghan DA
• Description:
  This report describes instrumentation that is part of a system for extinguishing mine fires by pumping material through surface boreholes to seal off all underground passageways leading to the fire area. Major instrumentation systems include a closed-circuit television (cctv) probing system and an acoustic seal checking system. The latter consists of a speaker probe, a receiver probe, and related signal processing equipment. All probes can be winch- deployed down a 6-inch-diameter borehole. The cctv unit can be rotated 360 deg in the horizontal plane, and contains sufficient lighting to reliably assay conditions for sealing or rescue within a 200-foot radius. The acoustic seal checker monitors the completion of a seal as it progresses by use probes lowered through boreholes on either side of the seal. [Description provided by NIOSH]
• Subjects:
  Occupational Health Safety
• Series:
  Mining Publications
• Subseries:
  Open File Report
• Document Type:
  Text
• Genre:
  Conference Publications ; Final Contract Report
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Division:
  PRC - Pittsburgh Research Center
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Pages in Document:
  1-78
• NIOSHTIC Number:
  nn:10000558
• NTIS Accession Number:
  PB-295292
• Citation:
  NTIS: PB 295-292; :1-78
• Federal Fiscal Year:
  1977
• Performing Organization:
  Foster-Miller Associates, Inc.
• Peer Reviewed:
  False
• Source Full Name:
  NTIS: PB 295-292
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:ed2f5f898f1871c9238b5b55c9f670e3704206a1a47e633943f0def71ed2a807bb67182191b4a286b65c74518c7753c2f61888bf6e4031270fdebc242e5ba8b6
• Download URL:
  https://stacks.cdc.gov/view/cdc/206473/cdc_206473_DS1.pdf
• File Type:
  [PDF - 6.82 MB ]