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Toward development of a hard-rock mining machine--drag cutter experiments in hard abrasive rocks

Determination of bit forces encountered in hard rock cutting for application to continuous miner design

Large-scale laboratory drag cutter experiments in hard rock

Large-scale testing of the ripper fragmentation system

Published Year

• 1980-1989 (4)

Subject

• Drag bits (Drilling and boring)--Testing (4) *
• Rock mechanics (4) *
• Mining machinery (2)
• Mining machinery--Design and construction (1)
• Quarries and quarrying (1)

Author

• Morrell, Roger J. (3)
• Larson, David A. (2)
• Swanson, David E. (2)
• Demou, Sam G. (1)
• Olson, Richard C. (1)
• Wilson, Richard J. (1)
• Wingquist, Carl F. (1)

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