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Scheduling of open-pit phosphate mine extraction

Author

Listed:
  • Ahlam Azzamouri
  • Pierre Fénies
  • Frédéric Fontane
  • Vincent Giard

Abstract

Open-pit deposits are often characterised by a stack of layers of different geological nature. Some layers are worthless while the ore of the others is of a varying economic value depending on grade. To reach a layer, it is necessary to have first removed the upper layers above the extraction zone. This action results in uncovering the layer in this particular place and in facilitating access to the layers below. This extraction process involves a series of 2–7 basic operations; each one is performed by a machine, some of which are able to perform up to three different operations. Ensuring the consistency of mining extraction scheduling over a few months, in order to meet known or forecast demand, is a challenging task. A mining extraction model based on mathematical programming is proposed but it is hardly usable, due to its size. Therefore, a model based on a Discrete Event Simulation, is created to test how ore supplies are affected by the tactical and operational decisions relating to the choice of parcels to be processed and to the allocation of machines to the different basic operations.

Suggested Citation

  • Ahlam Azzamouri & Pierre Fénies & Frédéric Fontane & Vincent Giard, 2018. "Scheduling of open-pit phosphate mine extraction," International Journal of Production Research, Taylor & Francis Journals, vol. 56(23), pages 7122-7141, December.
    • Handle: RePEc:taf:tprsxx:v:56:y:2018:i:23:p:7122-7141
    DOI: 10.1080/00207543.2018.1433341
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    Cited by:

    1. Bassma Azzamouri & Vincent Hovelaque, 2024. "An integrated steering approach to improve a phosphate supply chain efficiency," Post-Print hal-04418207, HAL.
    2. Zeng, Lanyan & Liu, Shi Qiang & Kozan, Erhan & Corry, Paul & Masoud, Mahmoud, 2021. "A comprehensive interdisciplinary review of mine supply chain management," Resources Policy, Elsevier, vol. 74(C).
    3. Cinna Seifi & Marco Schulze & Jürgen Zimmermann, 2021. "Solution procedures for block selection and sequencing in flat-bedded potash underground mines," OR Spectrum: Quantitative Approaches in Management, Springer;Gesellschaft für Operations Research e.V., vol. 43(2), pages 409-440, June.

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