Academic Journal
Joint stochastic optimisation of stope layout, production scheduling and access network
| العنوان: | Joint stochastic optimisation of stope layout, production scheduling and access network |
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| المؤلفون: | Penadillo, Cristina, Dimitrakopoulos, Roussos, Kumral, Mustafa |
| المساهمون: | Natural Sciences and Engineering Research Council of Canada |
| المصدر: | Mining Technology: Transactions of the Institutions of Mining and Metallurgy ; volume 133, issue 2, page 127-141 ; ISSN 2572-6668 2572-6676 |
| بيانات النشر: | SAGE Publications |
| سنة النشر: | 2024 |
| الوصف: | The three main optimisation components of sublevel stoping methods are stope layout, production schedule (or stope sequencing) and access networks. The joint optimisation of these components could further add value to an underground mining project. This potential has not been considered in the literature due to computational difficulties, and the problem was solved sequentially. This paper proposes a new joint optimisation model to integrate these components. In addition, the proposed optimisation model incorporates stochastic simulations to capture uncertainty and variability associated with the grades of the related mineral deposits mined. The optimisation model is based on a two-stage stochastic integer programming (SIP) formulation that maximises the project's net present value (NPV) and minimises the planned dilution. Applying the proposed method at a small copper deposit shows that the SIP outperforms the results obtained from mixed integer programming. For a seven-year mine life, the SIP model generated ∼20% more NPV, demonstrating the importance of developing a joint optimisation formulation and accounting for grade uncertainty and variability. |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | English |
| DOI: | 10.1177/25726668241242230 |
| الاتاحة: | https://doi.org/10.1177/25726668241242230 https://journals.sagepub.com/doi/pdf/10.1177/25726668241242230 https://journals.sagepub.com/doi/full-xml/10.1177/25726668241242230 |
| Rights: | https://creativecommons.org/licenses/by/4.0/ |
| رقم الانضمام: | edsbas.27E16CB0 |
| قاعدة البيانات: | BASE |
| DOI: | 10.1177/25726668241242230 |
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