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Hydraulic coal mining research :tests in a steeply pitching coalbed, Rosalyn, Wash.

Hydraulic coal mining research :development mining in a steeply pitching coalbed, Roslyn, Wash.

Procedures used for sampling fracture orientations in an underground coal mine

Advancing coal mining technology research, development, and demonstration in fiscal year 1977

Published Year

• 1960-1969 (2)
• 1970-1979 (2)

Subject

• Coal mines and mining--Research (4) *
• Fracture mechanics--Research (1)
• Hydraulic mining (1)
• Hydraulic mining--Research (1)
• Hydraulic mining--Washington (State) (1)
• Mining engineering (1)
• Rock mechanics--Research (1)

Author

• Badda, Frank. (2)
• Alldredge, J. R. (1)
• Bolstad, D. D. (1)
• Mahtab, M. A. (1)
• Nasiatka, Thomas M. (1)
• Price, George Cletus, (1)

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