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Prediction of penetration rate for percussive drilling

Percussive drilling with independent rotation

Drillability studies :percussive drilling in the field

Published Year

• 1970-1979 (3) *

Subject

• Percussion drilling (3) *
• Boring (2)
• Boring machinery (2)
• Drilling and boring machinery (1)
• Tunneling (1)

Author

• Bruce, William E. (1)
• Fumanti, Robert R. (1)
• Schmidt, Robert L. (1)
• Selim, A. Aly. (1)
• Unger, Harold F. (1)

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