在地质不确定性条件下将运营模式纳入露天矿长期规划:可变邻域后裔与线性规划相结合的优化方法

IF 1.5 4区 工程技术 Q3 METALLURGY & METALLURGICAL ENGINEERING Mining, Metallurgy & Exploration Pub Date : 2024-08-13 DOI:10.1007/s42461-024-01052-9
Aldo Quelopana, Alessandro Navarra
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引用次数: 0

摘要

为了应对地质不确定性条件下长期露天矿规划的挑战,人们逐步开发出了先进的模型。先前的研究已经认识到,矿山规划战略和选矿厂设计战略是相互依存的;因此,将二者结合起来进行优化是非常可取的。然而,由于数学公式和计算处理能力的固有限制,实现整个矿产价值链的详细整体优化仍是一个悬而未决的问题。本文详细介绍了一种有助于弥合这些限制的方法,即采用一种新颖的并行化变量邻域下降方法,结合嵌入式质量平衡组件,使用通过 Dantzig-Wolfe 分解精炼的线性规划技术。该方法通过对金矿的案例研究进行了示范,说明了新算法性能的增强。研究结果表明,矿山规划的优化过程有了明显改善,矿山产出与加工厂能力之间的联系更加紧密。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

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Incorporating Operational Modes into long-Term Open-Pit Mine Planning Under Geological Uncertainty: An Optimization Combining Variable Neighborhood Descent with Linear Programming

Sophisticated models have progressively been developed to address the challenges related to long-term, open-pit mine planning under conditions of geological uncertainty. Prior research has acknowledged that strategies for mine planning and the design of mineral concentrators are interdependent; thus, it is highly desirable to optimize them together. However, achieving detailed holistic optimization of the entire mineral value chain remains unresolved because of the inherent limitations associated with mathematical formulations and computational processing capacity. This paper details a method that contributes to bridging these limitations by employing a novel parallelized variable neighborhood descent approach combined with an embedded mass–balance component using linear programming techniques refined through Dantzig–Wolfe decomposition. This approach is exemplified through a case study of a gold deposit, which illustrates the enhanced performance capabilities of the new algorithm. The findings demonstrate significant improvements in the optimization process for mine planning, providing a stronger link between the mine’s output and processing plant’s capabilities.

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来源期刊
Mining, Metallurgy & Exploration
Mining, Metallurgy & Exploration Materials Science-Materials Chemistry
CiteScore
3.50
自引率
10.50%
发文量
177
期刊介绍: The aim of this international peer-reviewed journal of the Society for Mining, Metallurgy & Exploration (SME) is to provide a broad-based forum for the exchange of real-world and theoretical knowledge from academia, government and industry that is pertinent to mining, mineral/metallurgical processing, exploration and other fields served by the Society. The journal publishes high-quality original research publications, in-depth special review articles, reviews of state-of-the-art and innovative technologies and industry methodologies, communications of work of topical and emerging interest, and other works that enhance understanding on both the fundamental and practical levels.
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