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| Algorithme de Lerchs-Grossmann× | Optimisation de la configuration des chantiers souterrains× | |
|---|---|---|
| Domaine | Génie minier | Génie minier |
| Famille | Process / pipeline | Process / pipeline |
| Année d'origine≠ | 1965 | 1960 |
| Auteur d'origine≠ | Helmut Lerchs and Israel Grossmann | Mining Engineering Practice |
| Type≠ | Graph-theoretic algorithm for pit limit optimization | Optimization framework for underground mine excavation design |
| Source fondatrice≠ | Lerchs, H., & Grossmann, I. F. (1965). Optimum design of open-pit mines. Canadian Mining and Metallurgical Bulletin, 58(633), 47-54. link ↗ | Brady, B. H. G., & Brown, E. T. (2004). Rock mechanics for underground mining. Springer Science+Business Media. link ↗ |
| Alias≠ | Lerchs-Grossmann Method, LG Algorithm | Stope Design, Underground Mine Layout, Panel Design |
| Apparentées≠ | 4 | 3 |
| Résumé≠ | The Lerchs-Grossmann Algorithm is a graph-theoretic method for determining the ultimate pit limit in open-pit mining operations. Introduced by Helmut Lerchs and Israel Grossmann in 1965, it maximizes the net present value of extracted ore while respecting slope stability constraints. This algorithm forms the theoretical foundation for most modern pit optimization software. | Stope layout optimization is the process of designing the size, shape, and spatial arrangement of underground mine excavations (stopes) to maximize ore recovery while maintaining safety and economic viability. It balances the desire for large extraction volumes against rock mechanics constraints and support costs. The layout determines mining productivity, capital investment in support systems, and long-term mine life. |
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