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- Research methods and measures:
- Pressure
- Document types:
- Reports of Investigations
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Results 1 - 6 of 6
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4/1/2006 - Reports of InvestigationsDetermining backfill stress is an important part of evaluating mine safety, whether personnel are working in proximity to backfill or in other areas of the mine where backfill is an integral part of regional support.
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12/1/2002 - Reports of InvestigationsEvaluation of the strength characteristics and air leakage resistance of numerous innovative seal designs and ventilation control structures for use in underground coal mines.
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1/1/1993 - Reports of InvestigationsThe U.S. Bureau of Mines conducted a study to determine if commercially available automatic sprinklers could withstand the high static pressures in deep underground coal mines without leaking and if exposure to the mine environment affected their leak p...
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1/1/1985 - Reports of InvestigationsThe Bureau of Mines and United States Steel Corp. are conducting a joint project to monitor formation pressures at a large (23-well) coalbed gas drainage field near Oak Grove, Alabama. Three monitor holes were drilled in late 1981, and pressure monitori...
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1/1/1973 - Reports of InvestigationsThe Bureau of Mines is in the process of degasifying a virgin area in northern West Virginia from the base of an 839-foot-deep vertical borehole.
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1/1/1972 - Reports of InvestigationsA sorption apparatus for measuring the equilibrium sorption isotherm and the rate of diffusion of methane from fine-sized coal was designed and constructed. Preliminary work that used Pittsburgh and Pocahontas No. 3 Coal shows that the diffusion coeffic...
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Content source: National Institute for Occupational Safety and Health, Mining Program