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Conference Proceedings

Project Evaluation 2016

Conference Proceedings

Project Evaluation 2016

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Optimising Underground Mining Strategies

Underground mine scheduling decision-making has been based on production requirements, equipment productivities and the mine planner's instincts on the best scheduling strategy for the mine to optimise the net present value (NPV) of a project._x000D_
In the last few years, innovative software has been developed to optimise underground schedules based on NPV. The schedule optimisation tool (SOT) allows the user to set up scenarios based on grade, metal content, capital and operating costs._x000D_
This paper discusses the results of two case studies undertaken using the SOT software to optimise the NPV of the projects._x000D_
In each case study, the SOT software has been applied in two ways: using the original mine planner's scenario and determining whether the NPV could be improved by changing resource capacities changing the scheduling goals to determine whether a different mining strategy would have a better NPV outcome._x000D_
The outcomes of the case studies demonstrate that the mine layout and design were contributing factors to the overall improvement of the NPV and that SOT has a more noticeable impact on the NPV of projects where less sequence constraints are required, such as geotechnical sequencing and access development._x000D_
CITATION: Ebbels, A M, 2016. Optimising underground mining strategies, in Proceedings Project Evaluation 2016, pp 60-65 (The Australasian Institute of Mining and Metallurgy: Melbourne).
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  • Published: 2015
  • PDF Size: 0.777 Mb.
  • Unique ID: P201601007

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