A heuristic approach to optimal design of an underground mine stope layout
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The optimal layout or geometry of the production area (stope) in an underground mining operation maximises the undiscounted value subject to the inherent physical, geotechnical, and geological constraints. Numerous approaches to develop possible stope layouts have been introduced. However, owing to the size and complexity of the problem, these approaches do not guarantee an optimal solution in three-dimensional space. This article proposes a new heuristic algorithm that incorporates stope size variation for solving this complex and challenging optimisation problem. A case study demonstrates the implementation of the algorithm on an actual ore body model. In a validation study, the proposed algorithm generates 10.7% more profitable solution than the commercially available Maximum Value Neighbourhood (MVN) algorithm.
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Topal, Erkan; Sens, J. (2010)Stopes can be simply defined as an underground opening from which ore has been excavated. Selection of the best combination of available stope boundary will directly affect the profitability of the operation. While a few ...
Implementation and comparison of four stope boundary optimization algorithms in an existing underground mineErdogan, G.; Cigla, M.; Topal, Erkan; Yavuz, M. (2017)Deeper deposits become the future of mining as an increasing amount of shallow deposits are exploited. Consequently, the mining industry is being forced to extract minerals from deeper deposits using underground mining ...
Stope boundary optimisation in underground mining based on a heuristic approachStope boundary optimisation in underground mining based on a heuristic approachSandanayake, Don Suneth Sameera (2014)Stope optimisation is pivotal to maximisation of NPV of an underground mining project. However, none of the algorithms developed for stope optimisation guarantees optimal stope layout due to the computational complexity ...