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Results 101 - 110 of 128
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11/1/1997 - Technology NewsA method is described for allowing operators to predict methane emissions from panels with increased face width.
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11/1/1997 - Technology NewsWith the increasing cost of wood and greater dependency on wood cribs for support in applications such as longwall tailgate and bleeder entries, more efficient use of wood crib supports is required.
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11/1/1997 - Technology NewsThe use of seismic tomography to identify geologic hazards in underground mines is discussed.
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7/1/1997 - Technology NewsA machine-mounted continuous respirable dust monitor is discussed that can accurately monitor, display, and record concentration levels of respirable coal mine dust in mines for extended periods.
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7/1/1997 - Technology NewsThe analysis of Retreat Mining Pillar Stability (ARMPS) computer program was developed in 1995 and has been widely accepted by the mining community. A Windows version of ARMPS is now available. It features simplified data input, graphics, and an expande...
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7/1/1997 - Technology NewsTo provide a safe, practical, cost-effective method for measuring coal rib thickness during highwall mining.
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7/1/1997 - Technology NewsDescribes a device to enable mine operators and mine inspectors to make quick and accurate measurements of the explosive nature of coal and rock dust mixtures.
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7/1/1997 - Technology NewsThe approach taken in this research project was to mine only the ore-bearing portion of the deposit using a high-pressure water jet to thaw the gravels and a downhole hydraulic-lift-type pump to bring the ore to he surface as slurry.
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5/1/1997 - Technology NewsThe Mine Safety and Health Administration (MSHA) has requested new safeguards and design criteria for hoists and ore passes. However, equipment suppliers and mining companies cannot justify the costs nor interrupt production to develop and test safer te...
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5/1/1997 - Technology NewsUsing an artificial neural network based system to detect trolley faults would require no modification of the trolley rectifier, line, feeder, or its vehicles, lessening maintenance concerns and costs.
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Content source: National Institute for Occupational Safety and Health, Mining Program