| Titre | Rockburst in underground excavations: A review of mechanism, classification, and prediction methods |
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| Auteur | Askaripour, M; Saeidi, A; Rouleau, A; Mercier-Langevin, P |
| Source | Underground Space vol. 7, issue 1, 2022 p. 1-31, https://doi.org/10.1016/j.undsp.2021.11.008  Accès ouvert |
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| Année | 2022 |
| Séries alt. | Ressources naturelles Canada, Contribution externe 20210661 |
| Éditeur | Elsevier |
| Document | publication en série |
| Lang. | anglais |
| DOI | https://doi.org/10.1016/j.undsp.2021.11.008 |
| Media | papier; en ligne; numérique |
| Formats | pdf |
| Sujets | coups de toit; géophysique; géologie structurale |
| Illustrations | modèles schématiques; tableaux; figures; graphiques |
| Diffusé | 2022 01 10 |
| Résumé | (disponible en anglais seulement)
Technical challenges have always been part of underground mining activities, however, some of these challenges grow in complexity as mining occurs in deeper and
deeper settings. One such challenge is rock mass stability and the risk of rockburst events. To overcome these challenges, and to limit the risks and impacts of events such as rockbursts, advanced solutions must be developed and best practices
implemented. Rockbursts are common in underground mines and substantially threaten the safety of personnel and equipment, and can cause major disruptions in mine development and operations. Rockbursts consist of violent wall rock failures associated
with high energy rock projections in response to the instantaneous stress release in rock mass under high strain conditions. Therefore, it is necessary to develop a good understanding of the conditions and mechanisms leading to a rockburst, and to
improve risk assessment methods. The capacity to properly estimate the risks of rockburst occurrence is essential in underground operations. However, a limited number of studies have examined and compared yet different empirical methods of rockburst.
The current understanding of this important hazard in the mining industry is summarized in this paper to provide the necessary perspective or tools to best assess the risks of rockburst occurrence in deep mines. The various classifications of
rockbursts and their mechanisms are discussed. The paper also reviews the current empirical methods of rockburst prediction, which are mostly dependent on geomechanical parameters of the rock such as uniaxial compressive strength of the rock, as well
as its tensile strength and elasticity modulus. At the end of this paper, some current achievements and limitations of empirical methods are discussed. |
| Sommaire | (Résumé en langage clair et simple, non publié)
Cette contribution résume les principaux mécanismes qui sont responsables d'instabilités et de projection de roches (coups de toit) dans les
excavations sous-terraines telles des galeries de mine. Cette contribution présente également une revue des méthodes de classification des coups de toit, et comment ceux-ci peuvent être prédits. |
| GEOSCAN ID | 329627 |
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