A simulative model for optimum open pit design


Erarslan K., Celebi N.

CIM BULLETIN, vol.94, no.1055, pp.59-68, 2001 (Peer-Reviewed Journal) identifier identifier

  • Publication Type: Article / Article
  • Volume: 94 Issue: 1055
  • Publication Date: 2001
  • Journal Name: CIM BULLETIN
  • Journal Indexes: Science Citation Index Expanded, Scopus
  • Page Numbers: pp.59-68
  • Keywords: profit maximization, optimum pit design, dynamic programming, mine simulation, ALGORITHM

Abstract

Previous research in the area of open pit mine optimization has focused on profit maximization by optimizing pit limits or optimizing production schedules. However, these two approaches are interrelated and dependent on each other. Recent studies have recognized the limitation of this optimization approach, Consequently, there is a need for a more comprehensive modelling strategy. Such an optimization model should incorporate mining activities that are simulated (as they are expected to occur) as much as possible. Considerations should be given to such parameters as the cut-off ore grade, the starting location of mining, equipment selection, annual production rates, excavation sequence, and the synchronization of the mining plant operations during the planning stage of the mine. A change in any of these parameters will cause a concomitant change in other parameters. Therefore an efficient optimization system is one that attempts to simulate the mine in a comprehensive manner and thereby provides more realistic results.