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Roof movement study of mechanized retreating longwall operation, Lancashire no. 15 mine, Bakerton, Cambria County, Pa.

Cementation of bituminous-coal-mine roof strata.

Roof-span studies in limestone

Method of determining the strength of a mine roof

Cementation of bituminous-coal-mine roof strata :injection of epoxy and polyester-type resins

Published Year

• 1950-1959 (5) *

Subject

• Mine roof control (5) *
• Coal mines and mining (2)
• Epoxy resins (1)
• Limestone--Testing (1)
• Longwall mining (1)

Author

• Maize, Earl R. (2)
• Merrill, Robert H. (2)
• Barry, A. J. (1)
• Morgan, Thomas A. (1)
• Oitto, Richard H. (1)
• Wallace, Joseph J. (1)
• Wojciechowski, J. J. (1)

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