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Thick-seam mining in the western United States--geological considerations

Multislice mining for thick western coal seams

Effects of Remote Drop and Pumpdown Placement on Cellular Concrete

Published Year

• 1980-1989 (1)
• 1990-1999 (2)

Subject

• Coal mines and mining--West (U.S.) (1)
• Coal--Geology--West (U.S.) (1)
• Concrete -- Testing. (1)
• Mine shafts -- United States. (1)
• Sealing (Technology) (1)
• Thick seam mining--West (U.S.) (1)

Author

• Boreck, D. L. (3) *
• Clarke, D. R. (1)
• Hackett, T. D. (1)

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