Towards a practical stope reconciliation process in large-scale bulk underground stoping operations, Olympic Dam, South Australia

CIM Journal, Vol. 6, No. 2, 2015, pages 102-110

Y. Potvin
Australian Centre for Geomechanics, Nedlands, Australia

D. Grant and G. Mungur
BHP Billiton Olympic Dam, Adelaide, Australia

http://dx.doi.org/10.15834/cimj.2015.9
Résumé Le présent article traite de la réconciliation de la performance des chambres ouvertes à Olympic Dam, Australie du Sud, en ciblant la stabilité des chambres, la récupération et les aspects opérationnels de la réconciliation des chambres par rapport à la conception attendue ou planifiée des chambres. La performance observée des chambres ne concorde pas avec les critères d’épaisseur équivalente du bris hors profil pour évaluer la performance de grandes chambres ouvertes. L’objectif est d’étudier de nouveaux critères de performance des chambres au moyen de données quantitatives (rupture hors profil, rupture à l’intérieur du profil planifié, profondeur maximale d’effondrement du mur) et qualitatives (productivité de la chambre, fragmentation observée) qui concordent avec le comportement observé des chambres, fournissant ainsi un processus pour améliorer les futures conceptions des chambres.
Mots-Clé Chambres ouvertes, épaisseur équivalente du bris hors profil, réconciliation, système de suivi de cavité
Accés complet à Document technique
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