Rock cutting by impact action

✍ Scribed by B.N. Whittaker; A.B. Szwilski

• Publisher: Elsevier Science
• Year: 1973
• Tongue: English
• Weight: 1009 KB
• Volume: 10
• Category: Article
• ISSN: 0148-9062
• DOI: 10.1016/0148-9062(73)90012-0

✦ Synopsis

Al~tract--The principles of rock cutting are reviewed and differentiation made between linear and impact cutting. Theoretical aspects ofcutting are discussed with particular reference to the tensile splitting theory. The role played by the rock fabric in relation to its cutting characteristics is examined. Consideration is given to how a rock's impact cutting property can be established and to this end a description is given of an experimental rig designed to test different rock types. Results from a study with the impact cutting rig are presented and discussed, it is concluded that this form of test is of great value in comparing the impact cutting properties of different rocks. The practical implications of the results are discussed, in particular their bearing on the design aspects of current rock cutting machines.