An Investigation of Longwall Gob Gas Behavior and Control Methods

Details

• Personal Author:
  Diamond, William P. ; Garcia F ; Jeran, Paul W. ; LaScola JC ; McCall FE ; Mucho, Thomas P. ; Schatzel, Steven J.
• Description:
  The National Institute for Occupational Safety and Health (NIOSH) has initiated the use of a tracer gas in field studies to characterize geologic and mining factors influencing the migration of longwal1 gob gas. Three studies have been conducted using sulfur hexafluoride (SF 6) at a coal mine in the Northern Appalachian Basin operating in the Pittsburgh CoaIbed. Eight underground tracer gas releases and one gob gas venthole release are summarized. The results indicate that the gas flow in the bleeder network and in the interior regions of longwall panel gobs do not strongly interact and that the negative pressure provided by gob gas venthole exhausters is very significant in maintaining this behavior. The data also show that ventilation practices employed in a large multi-panel gob area are functioning in accordance with the intent of the engineering design, a fact which would be difficult to evaluate using conventional mine ventilation measurement methods. [Description provided by NIOSH]
• Subjects:
  Coal Coal Mining Methane Mining Occupational Health Safety Ventilation Workplace
• Keywords:
  Coal-mining Gas-detectors Gas-meters Gas-sampling Longwall-mining Methane-control Methanes Underground-mining Ventilation-equipment Ventilation-systems Worker-health Workplace-monitoring Workplace-studies

  More +
• Series:
  Mining Publications
• ISBN:
  1887009043
• Publisher:
  University of Missouri-Rolla Press
• Document Type:
  Text
• Genre:
  Proceedings
• Place as Subject:
  Missouri ; OSHA Region 3 ; OSHA Region 7 ; Pennsylvania
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Division:
  PRL - Pittsburgh Research Laboratory
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Pages in Document:
  43-51
• NIOSHTIC Number:
  nn:20027604
• Citation:
  Proceedings of the Eighth US Mine Ventilation Symposium, Rolla, Missouri, June 11-17, 1999. Rolla, Missouri: University of Missouri-Rolla Press, 1999 Jun; :43-51
• CAS Registry Number:
  Methane (CAS RN 74-82-8)
• Editor(s):
  Tien JC
• Federal Fiscal Year:
  1999
• Peer Reviewed:
  False
• Source Full Name:
  Proceedings of the Eighth US Mine Ventilation Symposium, Rolla, Missouri, June 11-17, 1999
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:286ef68d9f0c21edc4c6fc9dbaece217424b582fa7df432db81a199e321626d01fd308d5e1932ff02f29fbe25e43e852982d98306f551c79ee1bc7d887837cc5
• Download URL:
  https://stacks.cdc.gov/view/cdc/221055/cdc_221055_DS1.pdf
• File Type:
  [PDF - 1.37 MB ]