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- Hazards and exposures:
- Bumps
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Results 21 - 30 of 32
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8/1/1997 - Conference papersResearchers from private industry and NIOSH have studied mechanisms of violent failure and have identified individual factors that contribute to coal bumps. They initiated a comprehensive study to develop tools for assessing coal bump potential.
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3/1/1997 - Conference papersSudden, violent failures of rock around mine openings influence access, ventilation, and safety in both hard-rock and coal mines. The authors initiated a comprehensive study to develop predictive tools for assessing potential rock failure.
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1/1/1997 - Conference papersRock masses in deep-level mines are subject to high stresses, which can result in unexpected failure of rock into mined-out openings. Personnel from two research centers of the former U.S. Bureau of Mines, Spokane and Twin Cities, investigated a rock b...
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7/1/1995 - Reports of InvestigationsThe U.S. Bureau of Mines conducted an overcore stress measurement on the 5300 level of the Lucky Friday Mine, Mullan, ID, to investigate the stress regime around an experimental stope in a rock-burst-prone mine. The result indicated a stress field with ...
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1/1/1995 - NIOSH/USBM numbered publicationsOne of the most difficult, longstanding engineering problems associated with coal mining is the catastrophic failure of cog mine structures known as bumps. For more than 70 years, researchers and practitioners have assembled a wealth of technical info.
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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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2/1/1992 - Book chaptersThis presents a review of past and present United States mining practices for optimum design to minimize coal bumps.
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1/1/1992 - Reports of InvestigationsResearchers monitored rock mass response to mining of an experimental underhand longwall stope in Hecla Mining Company's Lucky Friday Mine, Mullan, Idaho. This is part 1 of 3.
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1/1/1992 - Reports of InvestigationsResearchers monitored rock mass response to mining of an experimental underhand longwall stope in Hecla Mining Company's Lucky Friday Mine, Mullan, Idaho. This is part 2 of 3.
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1/1/1992 - Reports of InvestigationsStability analyses of fractured and faulted rock masses require delineation of the position, extent, and orientation of geologic discontinuities. Recommendations are made for increasing the accuracy of locations of microseismic events detected.
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Content source: National Institute for Occupational Safety and Health, Mining Program