Drift support in burst-prone ground

Cette publication n'est pas offerte dans votre langue; certains de ses renseignements ont été préremplis pour la version française.
Accés complet à Document technique
Version PDF pour 20,00 $
Recherche
Trier par :  Pertinence
Affichage des résultats 1 - 3
Texte
Sommaire: The feasibility assessment of a mineral deposit requires the construction of a geomechanical model of rock mass properties, for the purpose of preliminary mine design. The Noranda Technology Centre has been involved in the development of geomechanical models for several mineral deposits at the feasibility stage. Each model is constructed through intact rock testing, geotechnical core logging,
geotechnical mapping and rock mass classification. Rock mechanics principles are used to develop...
Publication: CIM Bulletin
Auteur(s): Simon Nickson, Dave Ecobichon, Michel Leclerc, Éric Côté
Mots clés: Rock mechanics, Feasibility studies, Geomechanical modelling.
Numéro: 998
Volume: 89
Année: 1996
Texte
Sommaire: A set of new blast damage criteria has been developed, with special reference to blasthole mining operations, for assessing damage by incorporating the vibration level, rock properties, site characteristics and the effects of ground support systems. The main objective of this work was to provide a database with reasonable accuracy for use in optimizing blast design, numerical analysis and ground control expert system module development.
The new damage criteria allow one to estimate the degree...
Publication: CIM Bulletin
Auteur(s): T.R. Yu, S. Vongpaisal
Mots clés: Blast damage criteria, Blast damage index, Underground blasting, Blasthole mining, Dynamic tensile strength, Blast design.
Numéro: 998
Volume: 89
Année: 1996
Texte
Sommaire: The Williams Mine is Canada’s largest gold producer, with annual production of 450 000 ounces from 2 300 000 tonnes of ore. Highly mechanized and automated underground mining practices are employed in order to achieve and maintain high levels of productivity and minimize costs.
The mine ventilation system is modified to include a new vent raise and variable pitch vane-axial fan. This addition allows several fan installations underground to be decommissioned. A substantial net savings in...
Publication: CIM Bulletin
Auteur(s): L. Henry Smith, David C. Arthur
Mots clés: Underground mining, Ventilation, Heating costs, Energy savings, Heat exchangers, Variable frequency drives, Heat recovery, Propane burners, Vane-axial fans.
Numéro: 998
Volume: 89
Année: 1996
Activé par Coveo Enterprise Search