3112. Production scheduling of an open pit mine under uncertainty
Invited abstract in session WD-12: Practical problems in scheduling , stream Scheduling and Project Management.
Wednesday, 14:30-16:00Room: Clarendon SR 1.02
Authors (first author is the speaker)
| 1. | Marcos Goycoolea
|
| Escuela de Administración, Pontificia Universidad Católica de Chile |
Abstract
Strategic mine planning optimization addresses the challenge of scheduling mining activities over extended time horizons, simultaneously managing material flows within complex mining networks. These problems are critically important in the mining industry, routinely involving millions of decisions spanning multiple decades. A fundamental difficulty lies in effectively managing geological uncertainty; while precise ore grade distributions remain unknown, geostatistical models provide probabilistic information. In this presentation, we formulate strategic mine planning as a stochastic programming problem and introduce innovative decomposition methods specifically designed to efficiently achieve near-optimal solutions in very large-scale scenarios. Extensive out-of-sample analysis validates the effectiveness of our approach, highlighting significant performance improvements and revealing insightful practical implications.
Keywords
- Stochastic Optimization
- Natural Resources
- Scheduling
Status: accepted
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