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Please use this identifier to cite or link to this item: http://hdl.handle.net/10204/1427

Title: Catastrophic failure of a raise boring machine during underground reaming operations
Authors: James, A
Keywords: Underground reaming operations
Catastrophic failures
Raise boring machines
Corrosion-induced fatigue
Engineering
Materials sciences
Issue Date: Mar-1997
Publisher: Pergamon-Elsevier Science Ltd
Citation: James, A. 1997. Catastrophic failure of a raise boring machine during underground reaming operations. Engineering Failure Analysis, vol. 4(1), pp 71-80
Abstract: This paper describes the investigation of the catastrophic failure of a raise boring machine used for underground reaming operations. The results of the investigation indicate that failure was due to the fracture of the 32 drive head bolts, 30 of which had failed as a result of corrosion-induced fatigue. Metallurgical examination confirmed that the bolts had been manufactured in accordance with the SAE J429 Specification. A number of recommendations have since been implemented by the mine, who has also introduced a quality system specifically for the control of drive head bolt sets. The equipment has now operated without problems for several years.
URI: http://hdl.handle.net/10204/1427
http://hdl.handle.net/10204/1427
ISSN: 1350-6307
Appears in Collections:Manufacturing science and technology
General science, engineering & technology

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