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Mining Product: Explosion Pressure Design Criteria for New Seals in U.S. Coal Mines
Keywords: Coal mining Explosions Pressure Seals
Original creation date: July 2007
Authors: RK Zipf, MJ Sapko, JF Brune
Information Circular - July 2007
Download PDF Document (2.76 MB)
NIOSHTIC2 Number: 20032239
Pittsburgh, PA: U.S. Department of Health and Human Services, Public Health Service, Centers for Disease Control and Prevention, National Institute for Occupational Safety and Health, DHHS (NIOSH) Publication No. 2007-144, Information Circular 9500, 2007 July; :1-76
Seals are used in underground coal mines throughout the United States to isolate abandoned mining areas from the active workings. Prior to the Sago Mine disaster in 2006, mining regulations required seals to withstand a 140-kPa (20-psig) explosion pressure (30 CFR4 75.335(a)(2)). However, Program Information Bulletin No. P06-16 issued by MSHA on July 19, 2006 [McKinney 2006], requires seals to withstand a 345-kPa (50-psig) explosion pressure. The recently enacted MINER Act requires MSHA to increase this design standard by the end of 2007. This report provides a sound scientific and engineering justification to recommend a three-tiered explosion pressure design criterion for new seals in coal mines in response to the MINER Act. The recommendations contained herein apply to new seal design and construction in U.S. coal mines.
Image of publication Explosion Pressure Design Criteria for New Seals in U.S. Coal MinesInformation Circular - July 2007
Download PDF Document (2.76 MB)
NIOSHTIC2 Number: 20032239
Pittsburgh, PA: U.S. Department of Health and Human Services, Public Health Service, Centers for Disease Control and Prevention, National Institute for Occupational Safety and Health, DHHS (NIOSH) Publication No. 2007-144, Information Circular 9500, 2007 July; :1-76
See Also
Compendium of Structural Testing Data for 20-psi Coal Mine Seals
Composition Change Model for Sealed Atmosphere in Coal Mines
Demonstration of Safety Plugging of Oil Wells Penetrating Appalachian Coal Mines
Evaluation of Explosion-Resistant Seals, Stoppings, and Overcast for Ventilation Control in Underground Coal Mining
Historical Development of Technologies for Controlling Methane in Underground Coal Mines
Progress Toward Improved Engineering of Seals and Sealed Areas of Coal Mines
Rock Dusting Considerations in Underground Coal Mines
Seal Design
Structural Analysis and Design of Seals for Coal Mine Safety
Technology News 535 - NIOSH Releases New Educational Video: Escape from Farmington No. 9: An Oral History
Use of Ground Penetrating Radar and Schmidt Hammer Tests to Determine the Structural Integrity of a Mine Seal
Page last reviewed: September 21, 2012
Page last updated: September 21, 2012
Content source: National Institute for Occupational Safety and Health, Mining Program
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