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- Hazard prevention and control:
- Fire and explosion prevention
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- Permissible explosives
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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
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- Explosion proof design
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- Intrinsically safe design
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- Methane control
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- Gob gas vent holes
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- Horizontal boreholes
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- Bleeder systems
- Document types:
- Reports of Investigations
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Results 1 - 10 of 33
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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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1/1/1990 - 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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1/1/1988 - Reports of InvestigationsThe Bureau of Mines conducted an investigation into the occurrence of outbursts of salt known to be responsible for explosions, fatalities, and damage in domal salt mines. The purpose of the investigation was to develop a basis for predicting these outb...
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1/1/1987 - Reports of InvestigationsGob holes are routinely used by the mining industry to vent methane from gobs and to prevent it from entering the mine ventilation system. In some cases, flows from gob holes are measured by centering an anemometer on the end of a discharge pipe. These ...
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Content source: National Institute for Occupational Safety and Health, Mining Program