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Cementation of bituminous-coal-mine roof strata.

Costs of mining under bolted roof and timbered roof in bituminous coal mines

Hydraulic coal mining research :equipment and preliminary tests

Hydraulic coal mining research :assessment of parameters affecting the cutting rate of bituminous coal

Published Year

• 1950-1959 (1)
• 1960-1969 (3)

Subject

• Coal mines and mining (3)
• Bituminous coal (2)
• Hydraulic mining (2)
• Coal--Research (1)
• Mine roof control (1)

Author

• Wallace, Joseph J. (4) *
• Ackerman, M. J. (2)
• Fowkes, Richard S. (1)
• Maize, Earl R. (1)
• Price, George Cletus. (1)

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