A development in rock cutting technology

M. Hood

doi:10.1016/S1365-1609(99)00107-0

A development in rock cutting technology

2000-01-01

81

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DOI：10.1016/S1365-1609(99)00107-0

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This paper describes a novel method of rock cutting - oscillating disc cutting (ODC) - in which the forces acting on the cutting tools, and hence on the excavation machine supporting these tools, are extremely low. Four different techniques are incorporated in the cutting method to achieve this result. The importance of this novel method is that it allows very strong and/or abrasive rock to be machined easily and rapidly without suffering the high rates of tool wear and/or tool failure that are experienced by conventional cutting machines operating in these types of rock. Also the fact that the ODC method requires very low machine reaction forces means that lightweight, and therefore manoeuvrable, mining and tunnelling machines can be employed in the excavation process. In the initial sections of this paper we discuss the physics of the process of rock breakage caused by mechanical curling tools and the wear and failure mechanisms of these tools. The arguments are given in order to introduce the thinking behind the ODC method. (C) 2000 Published by Elsevier Science Ltd. All rights reserved.

A development in rock cutting technology

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