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- Tasks and activities:
- Blasting
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Results 31 - 40 of 42
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2/1/2001 - Conference papersA compilation of the primary causes of flyrock in surface mining blasting operations and reasons a safe blast area was not secured.
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1/1/2001 - Conference papersStudy of toxic fumes produced by the detonation of ANFO/emulsion blends. An extension of previous ANFO fumes production research that includes an emulsion blasting agent.
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2/1/1998 - Conference papersThis paper presents data and theorem to calculate the risk of experiencing undesirable lightning related events while blasting or while engaged in other lightning sensitive activities. The paper provides an overview of lightning hazards in blasting oper...
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1/1/1997 - Conference papersTraditional techniques to experimentally determine toxic fumes produced by detonating high explosives are not applicable to blasting agents. To detonate properly, blasting agents require confinement, a significant booster, and other parameters.
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2/1/1996 - Conference papersResearch was conducted to determine the safe operating conditions for using recycled (used) lubricating oil from mining equipment as a partial replacement for diesel fuel to make ANFO-type blasting agents.
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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 conducted research at the Galena Mine, Wallace, ID, with the aim of mitigating the effects of rock bursting.
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1/1/1986 - Information CircularsResearch was conducted to determine whether the total elapsed delay time for blasting bituminous coal in underground coal mines could be safely expanded beyond the 500-ms limitation without igniting a methane or methane-coal dust atmosphere.
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9/1/1985 - Contract reportsPresents the preliminary safe distances for blasting wiring from typical electromagnetic sources. The distances are for underground coal mines and electromagnetic sources in the frequency range below 10 mhz.
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9/1/1983 - Contract reportsThe use of electromagnetic field producing equipment in underground coal mining operations can only be expected to grow. The use of these equipment in underground mining operations is hampered by the possibility of their electromagnetic fields interacti...
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Content source: National Institute for Occupational Safety and Health, Mining Program