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HEC Montréal, Canada, 6 - 8 mai 2013

Journées de l'optimisation 2013

HEC Montréal, Canada, 6 — 8 mai 2013

Horaire Auteurs Mon horaire

MB4 Applications en génie des mines II / Applications in Mining Engineering II

6 mai 2013 15h30 – 17h10

Salle: Van Houtte

Présidée par Amina Lamghari

4 présentations

  • 15h30 - 15h55

    A Tabu Search Procedure for Open Pit Mine Scheduling

    • Renaud Senécal, prés., Université McGill
    • Roussos Dimitrakopoulos, COSMO Stochastic Mine Planning Laboratory, Université McGill

    This study presents a metaheuristic solution for the open pit mine scheduling problem with multiple destinations and geological uncertainty. The feasible domain is explored by a Tabu search procedure, which finds the best local solution and uses a diversification strategy to generate new initial solutions. A case study is presented to show the efficiency of the approach.

  • 15h55 - 16h20

    Stochastic Short-term Mine Production Scheduling Accounting for Fleet Allocation and Operational Considerations

    • Martha E. Villalba Matamoros, prés., McGill University
    • Roussos Dimitrakopoulos, COSMO Stochastic Mine Planning Laboratory, Université McGill

    A stochastic short-term mine production scheduling problem is presented, where the ore body metal content, the fleet availability, and the hauling process are uncertain. We propose a stochastic integer formulation that is solved using the commercial solver CPLEX. Operational considerations, such as mining width and mining directions, are addressed and deliver practically mineable production scheduling patterns.

  • 16h20 - 16h45

    Long-Term Planning at Raglan Mine (Part 1)

    • Jean Collard, prés., Polytechnique Montréal
    • Rafael Martinelli, GERAD - Polytechnique Montréal
    • Michel Gamache, GERAD - Polytechnique Montréal

    We present a mixed-integer model for long-term planning in a large underground nickel mining complex. The Raglan Mine is located in Nunavik region, the extreme limit of Northern Quebec, Canada. The model incorporates operating characteristics like resource constraints, precedence between activities, nickel cutoff grade, among other. Results will be presented.

  • 16h45 - 17h10

    Long-Term Planning at Raglan Mine (Part 2)

    • Rafael Martinelli, prés., GERAD - Polytechnique Montréal
    • Jean Collard, Polytechnique Montréal
    • Michel Gamache, GERAD - Polytechnique Montréal

    In this talk, we show heuristic approaches to improve a MIP model resolution for a long-term planning in a large underground nickel mining complex. The heuristics work together with a commercial MIP solver. This technique can lead to high quality solutions fast. We compare our results with some existing ones.

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