The equipment utilisation versus mining rate trade-off in open pit mining

Arteaga, Felipe, Nehring, Micah and Knights, Peter (2017) The equipment utilisation versus mining rate trade-off in open pit mining. International Journal of Mining, Reclamation and Environment, 1-24. doi:10.1080/17480930.2017.1306674

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Author Arteaga, Felipe
Nehring, Micah
Knights, Peter
Title The equipment utilisation versus mining rate trade-off in open pit mining
Journal name International Journal of Mining, Reclamation and Environment   Check publisher's open access policy
ISSN 1748-0949
1748-0930
Publication date 2017-03-27
Year available 2017
Sub-type Article (original research)
DOI 10.1080/17480930.2017.1306674
Open Access Status File (Author Post-print)
Start page 1
End page 24
Total pages 24
Place of publication Abingdon, Oxfordshire United Kingdom
Publisher Taylor & Francis
Language eng
Abstract This paper investigates the potential value adding role that ‘schemes of exploitation’ may have as part of the open pit mine planning process. The deployment of loading equipment within the push-back of an open-pit mine ultimately determines the ‘mining rate’. Traditional mine planning processes seek to adopt schemes of exploitation that maximise the utilisation of the loading equipment as this will typically minimise mining cost. This paper argues that this does not always lead to the creation of value. A case-study demonstrates that alternative schemes of exploitation, with higher mining costs and lower shovel productivity can actually generate greater value. The results show an increase in Net Present Value from US$920M to US$966M when a less productive configuration of four shovels is set instead of a configuration of two shovels. A sensitivity analysis is presented to show the economic and technical conditions that can favour this new proposal.
Keyword Open pit mining
Mine planning
Schemes of exploitation
Mining rate
Equipment utilisation
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Mechanical & Mining Engineering Publications
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Created: Tue, 11 Apr 2017, 00:25:16 EST by Web Cron on behalf of School of Mechanical and Mining Engineering