--- title: The use of 3D models and analysis in support of waste stockpile design and operations (Disponible en anglais seulement) date: 2018-11-02T14:46:00-04:00 author: jessica napert canonical_url: "https://www.bbaconsultants.com/fr-ca/publications/the-use-of-3d-models-and-analysis-in-support-of-waste-stockpile-design-and-operations-disponible-en-anglais-seulement" section: Publications --- 1. The complexities of waste rock stockpiles are often underestimated. Slope stability analysis for such earth structures is usually carried out using two-dimensional (2D) slope stability methods. Furthermore the sections used in the analysis are often idealized. Selecting a typical or critical section is left to the designer. Given the number of parameters that can affect stability this approach may not always bring focus to those areas of the waste stock pile which are most critical. As such, three-dimensional (3D) slope stability analysis offers a more complete screening tool which assists the designer in identifying the most critical areas. Mining projects, in which complex co-deposition schemes are employed, using both fine and coarse material, coupled 3D seepage and slope stability analysis can prove useful. This allows modelling the impact of various co-deposition methods on the waste rock pile’s hydraulic regime and its effect on stability. Some complex co-deposition configurations modelling cannot be carried out with 2D analysis. Note that this white paper was the subject of a presentation at the Tailings and Mine Waste’18 Conference in Colorado State University. Ce contenu est fourni uniquement à des fins d’information générale. Tous droits réservés ©BBA 1. ![Luciano Piciacchia](https://www.assets.bbaconsultants.com/bba-production-assets/production/images/avatars/_size_avatar/3206/Luciano-Piciacchia.webp) Luciano Piciacchia, ing., Ph. D. Expert-conseil senior, Sol et Infrastructure [ ](https://www.linkedin.com/in/lucianopiciacchia/) 2. ![Vahid Marefat](https://www.assets.bbaconsultants.com/bba-production-assets/production/images/avatars/_size_avatar/3194/Vahid-Marefat.webp) Vahid Marefat, ing., Ph. D. Ingénieur sénior, Sol et infrastructure [ ](https://www.linkedin.com/in/vahidmarefat/) - [ 17 août 2026 Phase de base de l'ingénierie structurelle: créer de la valeur dès les premières décisions - ![Nicolas Samson](https://www.assets.bbaconsultants.com/bba-production-assets/production/images/avatars/_size_avatar/197852/Nicolas-Samson.webp) Nicolas Samson, ing. Ingénieur sénior, Structure ](https://www.bbaconsultants.com/fr-ca/perspectives/phase-de-base-ingenierie-structurelle-creer-valeur-des-les-premieres-decisions "Phase de base de l'ingénierie structurelle: créer de la valeur dès les premières décisions") - [ 12 août 2026 Les quatre erreurs qui nuisent à la performance future d'un actif industriel - ![Caroline provost](https://www.assets.bbaconsultants.com/bba-production-assets/production/images/avatars/_size_avatar/208557/Caroline-provost.webp) Caroline Provost ing. Directrice, Mise en œuvre de stratégie d’opération ](https://www.bbaconsultants.com/fr-ca/perspectives/quatre-erreurs-qui-nuisent-a-la-performance-future-dun-actif-industriel "Les quatre erreurs qui nuisent à la performance future d'un actif industriel") - [ 27 juill. 2026 Mines et métaux Vos décisions liées aux résidus miniers influencent la performance à long terme - ![Geraldine Cosset](https://www.assets.bbaconsultants.com/bba-production-assets/production/images/avatars/_size_avatar/206707/Geraldine-Cosset.webp) - ![Jared Purdy](https://www.assets.bbaconsultants.com/bba-production-assets/production/images/avatars/_size_avatar/212424/Jared-Purdy.webp) ](https://www.bbaconsultants.com/fr-ca/perspectives/decisions-liees-aux-residus-miniers-influencent-performance-long-terme "Vos décisions liées aux résidus miniers influencent la performance à long terme") - [ 02 juill. 2026 Mines et métaux Python : un outil clé pour l’analyse des données en traitement des minerais - ![Charles Blais](https://www.assets.bbaconsultants.com/bba-production-assets/production/images/avatars/_size_avatar/211197/Charles-Blais.webp) - ![Juan Pablo Vergara](https://www.assets.bbaconsultants.com/bba-production-assets/production/images/avatars/_size_avatar/211266/Juan-Pablo-Vergara.webp) ](https://www.bbaconsultants.com/fr-ca/perspectives/python-un-outil-cle-pour-analyse-donnees-en-traitement-minerais "Python : un outil clé pour l’analyse des données en traitement des minerais") [ Voir tout ](https://www.bbaconsultants.com/fr-ca/perspectives "Aller à la page Publications") Poussons la réflexion ensemble [ Contactez-nous ](https://www.bbaconsultants.com/fr-ca/contact) 1. The complexities of waste rock stockpiles are often underestimated. Slope stability analysis for such earth structures is usually carried out using two-dimensional (2D) slope stability methods. Furthermore the sections used in the analysis are often idealized. Selecting a typical or critical section is left to the designer. Given the number of parameters that can affect stability this approach may not always bring focus to those areas of the waste stock pile which are most critical. As such, three-dimensional (3D) slope stability analysis offers a more complete screening tool which assists the designer in identifying the most critical areas. Mining projects, in which complex co-deposition schemes are employed, using both fine and coarse material, coupled 3D seepage and slope stability analysis can prove useful. This allows modelling the impact of various co-deposition methods on the waste rock pile’s hydraulic regime and its effect on stability. Some complex co-deposition configurations modelling cannot be carried out with 2D analysis. Note that this white paper was the subject of a presentation at the Tailings and Mine Waste’18 Conference in Colorado State University. Ce contenu est fourni uniquement à des fins d’information générale. Tous droits réservés ©BBA