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Accession Number
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PB2013-102971
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Title
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Using the Coal Mine Roof Rating (CMRR) to Assess Roof Stability in U.S. Coal Mines.
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Publication Date
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2001
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Media Count
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8p
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Personal Author
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C. Mark D. Debasis G. M. Molinda
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Abstract
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While overall safety in U.S. coal mines has improved dramatically in the last 50 years, fatality rates continue to exceed other major industrial sectors (fig. 1). Fatalities due to ground falls make up a significant portion of this rate. In 1998 there wer ...
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Keywords
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Coal Mine Roof Rating(CMRR)
Coal mines
Mine safety
Rock mass
Roof falls
Roofs
Stability analysis
Strength values
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Source Agency
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National Institute for Occupational Safety and Health
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NTIS Subject Category
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48A - Mineral Industries
50D - Soil & Rock Mechanics
68G - Environmental Health & Safety
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Corporate Author
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National Inst. for Occupational Safety and Health, Pittsburgh, PA. Pittsburgh Research Lab.
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Document Type
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Technical report
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Title Note
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N/A
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NTIS Issue Number
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1306
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Contract Number
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N/A
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