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Use of a continuous borer in mining pitching anthracite beds

Stresses and displacements induced in rock by tunnel boring machine props

Energetics of percussive drills-longitudinal strain energy

Published Year

• 1960-1969 (3) *

Subject

• Boring machinery (3) *
• Boring (1)
• Coal-mining machinery (1)
• Strains and stresses (1)
• Tunneling (1)

Author

• Anderson, C. F. (1)
• Blake, Wilson. (1)
• Duvall, Wilbur I. (1)
• Lundquist, Robert G. (1)
• Schimmel, J. T. (1)
• Tavenner, William H. (1)

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