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- Hazard prevention and control:
- Fire and explosion prevention
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- Permissible explosives
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- Ignition source elimination
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- Explosion proof design
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- Spark prevention
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- Nonsparking tools
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- Water curtains
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- Flameproof construction
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- Intrinsically safe design
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- Methane control
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- Degasification
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- Gob gas vent holes
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- Horizontal boreholes
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- Cross measure boreholes
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- Bleeder systems
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- Explosion suppression
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- Rock dusting
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- Rock dust barriers
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- Inerting atmosphere
- Document types:
- Reports of Investigations
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Results 1 - 10 of 60
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5/1/2010 - Reports of InvestigationsThis NIOSH report presents the results of extensive in-mine coal dust particle size surveys of dust samples collected from intake airways in 61 U.S. coal mines, representing all 10 MSHA bituminous Coal Mine Safety and Health Districts.
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This NIOSH publication demonstrates how existing and new engineering controls can be used to reduce face methane levels.
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10/1/1999 - Reports of InvestigationsAn analysis of the consequences of increasing longwall panel dimensions, particularly face width, in gassy coalbeds. Continuous longwall face emission monitoring studies were conducted at two adjacent mines operating in the Pocahontas No. 3 Coalbed, whe...
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5/1/1998 - Reports of InvestigationsFull-scale testing and results are described for an automated system that continuously monitors the accumulation of coal dust in mine entries.
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5/1/1997 - Reports of InvestigationsThe article discusses the applicability of computerized signal analysis techniques to identify fault currents existing on coal mine direct-current trolley systems
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11/1/1995 - Reports of InvestigationsLaboratory and field testing results are presented for reducing dust and/or gas ignitions associated with blasting operations in oil shale and sulfide ore mining applications.
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1/1/1993 - Reports of InvestigationsThe U.S. Bureau of Mines investigated a method of using inert gas to prevent the formation of explosive gas mixtures in auger highwall mining of coal. A combination of gasoline and diesel engine exhaust gases was introduced into the auger drill hole us...
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1/1/1992 - Reports of InvestigationsThe Bureau of Mines completed an investigation of the influence of material on the ignition probability using the breakflash apparatus. This report presents results of an investigation into the influence of disk electrode material on the probability of...
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1/1/1992 - Reports of InvestigationsFour coreholes were drilled at a longwall mine in the Lower Kittanning coalbed to obtain coal and rock samples from overlying strata to determine their gas content during the mining cycle. Test results indicate that 91% of the gas came from coalbeds.
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1/1/1990 - Reports of InvestigationsThe Bureau of Mines preproduction wireless survey system (WSS) and its performance during an in-mine test are discussed in this report. The WSS was developed to reduce downhole surveying time in order to increase the efficiency of drilling long horizont...
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Content source: National Institute for Occupational Safety and Health, Mining Program