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Results 11 - 15 of 15
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12/1/2002 - Technology NewsThe growing realization of the importance of a healthy work environment along with increased regulations will require many stone mines to implement new ways to improve ventilation. In-place stone stoppings are one option.
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10/1/2002 - Conference papersOverview of a variety of techniques and methods that can be used to improve the air quality in underground stone mines.
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8/1/2001 - Conference papersThis paper presents investigations of underground measurements conducted to determine the loading response of stoppings constructed from lightweight aggregate concrete masonry units.
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8/1/1999 - Reports of InvestigationsNIOSH cooperated with Tecrete Industries Pty. Ltd. and BHP Australia Coal to evaluate the strength characteristics and air leakage of four seal and two stopping designs for use in underground coal mines.
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1/1/1988 - Reports of InvestigationsThis report presents a Bureau of Mines study comparing the construction costs, leakage measurements, and predicted performance of different types of large stoppings built and tested in a room-and- pillar oil shale mine.
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Content source: National Institute for Occupational Safety and Health, Mining Program