Mining Publication: A Study of Leakage Rates Through Mine Seals in Underground Coal Mines
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Original creation date: January 2016
Authors: SJ Schatzel, RB Krog, A Mazzella, CA Hollerich, EN Rubinstein
Peer Reviewed Journal Article - January 2016
The National Institute for Occupational Safety and Health conducted a study on leakage rates through underground coal mine seals. Leakage rates of coal bed gas into active workings have not been well established. New seal construction standards have exacerbated the knowledge gap in our understanding of how well these seals isolate active workings near a seal line. At a western US underground coal mine, we determined seal leakage rates ranged from about 0 to 0.036 m3/s for seven 340 kPa seals. The seal leakage rate varied in essentially a linear manner with variations in head pressure at the mine seals.
Peer Reviewed Journal Article - January 2016
Page last reviewed: April 25, 2016
Page last updated: April 25, 2016
Content source: National Institute for Occupational Safety and Health, Mining Program