Report of Investigations 9295: Analysis of Acoustic Responses of Domal Salt Mine Samples

Details

• Journal Article:
  Pittsburgh, PA: U.S. Department of the Interior, Bureau of Mines, RI 9295
• Personal Author:
  Grau, Roy H. III ; Marshall, Thomas E.
• Description:
  The Bureau of Mines has developed an acoustic test for determining if a rock salt sample is from a "normal" nongassy salt face or from a gassy face where an outburst has the potential to occur. The test is based on the observation that a salt sample taken near an outburst-prone zone produces an audible popping sound when it is dissolved in water. The sound is produced when pressurized gas that is trapped in salt samples is released. In the acoustic test, the sound is electronically measured, digitized, and transmitted to a microcomputer; the output is an average decibel value that classifies the sample as "normal" or "outburst." The acoustic test procedure and equipment are described, and raw test results and data analysis are shown. Results are also shown for several salt samples that were analyzed using a laser raman microprobe. [Description provided by NIOSH]
• Subjects:
  Acoustics Coal Coal Mining Mining Noise Occupational Health Safety Ventilation
• Keywords:
  Gas-indicators; Gas-detectors; Gases; Acoustic-signals; Acoustical-measurements; Acoustics; Mining-equipment; Mining-industry; Ventilation; Underground-mining; Combustible-gases; Coal-mining
• Source:
  Pittsburgh, PA: U.S. Department of the Interior, Bureau of Mines, RI 9295, 1990 Jan; :1-9
• Series:
  Mining Publications   ; NIOSH Numbered Publications  
• Subseries:
  Report of Investigations
• Document Type:
  Text
• Genre:
  Report
• Place as Subject:
  OSHA Region 3 ; Pennsylvania
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Division:
  PRC - Pittsburgh Research Center
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Pages in Document:
  15 pdf pages
• NIOSHTIC Number:
  nn:10007394
• NTIS Accession Number:
  PB91-110148
• Federal Fiscal Year:
  1990
• Peer Reviewed:
  False
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:459cad1de345efa6ae27fec90f29e83f5c19646b5b05a884976ea57e1450de404f545222fd8b25e53c968f5d282d728959e754df61dfc555c605fe571a0abff5
• Download URL:
  https://stacks.cdc.gov/view/cdc/9584/cdc_9584_DS1.pdf
• File Type:
  [PDF - 677.91 KB ]