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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 dust barriers
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- Ignition source elimination
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- Explosion proof design
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- Intrinsically safe design
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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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Results 71 - 80 of 128
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5/1/2000 - Peer reviewed journal articlesExplosion characteristics such as the minimum explosible concentration and the rock dust inerting requirements were measured for various combustible dusts. The explosion resistance characteristics of seals was also evaluated.
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10/1/1999 - NIOSH/USBM numbered publications, Training materialsThe first step to emergency preparedness is defining and analyzing hazards. Although all hazards should be addressed, resource limitations usually do not allow this to happen all at once.
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5/1/1999 - Conference papersInvestigation of the geologic and mining factors influencing the migration of longwall gob gas with a goal to optimize methane drainage strategies to reduce the volume of gob gas that reaches the underground workplace.
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6/1/1998 - Conference papersThere has been some improvement in overall mine fire preparedness. However, little data has been gathered on a site-by-site basis to determine what improvements might be made on a local level.
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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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9/1/1996 - Conference papersNew types of industrial instruments use fiber-coupled laser energy to power remote sensors. The U.S. Bureau of Mines began an investigation of laser-powered fiber-optic instruments in explosive atmospheres in support of the standard-making process.
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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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3/1/1995 - Technology NewsThe absence of fundamental scientific and engineering principles in the design and placement of gob gas ventholes can cause difficulties for mine operators when gas emissions increase because of a change in mine design or because variable geologic condi...
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1/1/1994 - Information CircularsThe U.S. Bureau of Mines conducted a worldwide literature review of bleederless ventilation practices to evaluate their use as a spontaneous combustion control measure in U.S. coal mines. This report describes the types of ventilation systems used throu...
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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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Content source: National Institute for Occupational Safety and Health, Mining Program