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- Measures
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- Reports of Investigations
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Results 1 - 3 of 3
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5/1/1995 - Reports of InvestigationsA U.S. Bureau of Mines case study of pillar recovery in high-grade ore near the Ross shaft at the Homestake Mine, Lead, SD, has demonstrated the usefulness of the finite-element method for evaluating shaft pillar mining plans and shaft stability. This r...
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1/1/1995 - Reports of InvestigationsThe U.S. Bureau of Mines has constructed a smoke chamber and developed sensitivity tests for smoke detectors. Evaluation of six smoke detectors showed their potential for use as mine fire sensors or as part of a mine atmospheric monitoring system.
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1/1/1985 - Reports of InvestigationsInvestigation of coal-mine-type short-delay electric detonators to determine the delay accuracy and the probability of overlap between adjacent delay periods.
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Content source: National Institute for Occupational Safety and Health, Mining Program