Examining system configuration in an open pit mine design

Benjamin Groeneveld, Erkan Topal, Bob Leenders

Research output: Contribution to journalArticle

Abstract

Current industry practice aims to develop mine designs with a fixed system configuration for a single set of inputs; without regard for uncertainty. Uncertainty is a key element of mining which causes variability in the inputs to the decision making process. Various sources of uncertainty exist in mining projects which may stem from volatility in commodity prices, unknown geological conditions, variable costs or unpredictable productivities. Design approaches that attempt to leverage this uncertainty are proposed and compared in this paper; namely, flexible, robust and operational designs. An analysis of these system configurations reveal that a flexible system configuration generates more value than a robust system configuration, which in turn generates more value than a fixed system configuration. However, a flexible system configuration cannot be practically implemented due to constant change. A robust configuration provides a solution where change can be handled and the analysis of the flexible system configuration provides an optimal frontier (value potential) to compare alternatives. An operational system configuration can be generated by analysing the system configurations generated by flexible and robust design. This paper uses a case study to develop and compare these modelling methodologies and proposes an operational system configuration; as a best fit.

Original languageEnglish
Article number101438
JournalResources Policy
Volume63
DOIs
Publication statusPublished - Oct 1 2019

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open pit mine
commodity price
uncertainty
decision making
productivity
methodology
industry
Values
cost
modeling
decision making process
commodity
analysis

Keywords

  • Flexibility in design
  • Mine capacity
  • Mine design
  • Operational design
  • Robust design
  • System configuration

ASJC Scopus subject areas

  • Sociology and Political Science
  • Economics and Econometrics
  • Management, Monitoring, Policy and Law
  • Law

Cite this

Examining system configuration in an open pit mine design. / Groeneveld, Benjamin; Topal, Erkan; Leenders, Bob.

In: Resources Policy, Vol. 63, 101438, 01.10.2019.

Research output: Contribution to journalArticle

Groeneveld, Benjamin ; Topal, Erkan ; Leenders, Bob. / Examining system configuration in an open pit mine design. In: Resources Policy. 2019 ; Vol. 63.
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