Development of a Round the Corner Drill
Abstract
A water jet drill capable of drilling a hole 50 ft long, is 8 in. in diameter in coal at speeds of 4 ft per minute. Little thrust is required to move the cutting head forward.
Recommended Citation
C. R. Barker et al., "Development of a Round the Corner Drill," Proceedings of the 20th U.S. Symposium on Rock Mechanics, American Rock Mechanics Association (ARMA), Jan 1979.
Meeting Name
20th U.S. Symposium on Rock Mechanics
Department(s)
Mining Engineering
Document Type
Article - Conference proceedings
Document Version
Citation
File Type
text
Language(s)
English
Rights
© 1979 American Rock Mechanics Association (ARMA), All rights reserved.
Publication Date
01 Jan 1979