Computer assisted economic analysis to select a stoping method.

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Mots clés : Mine design;Computer modeling
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Texte
Sommaire: The mine of the year 2020 will need to be based on a new way of mining. It will employ technology in a paradigm that assumes responsibility for sustainable development: taking account not only economic but also ecological and social issues. This will require a holistic approach to mine design and planning, considering all controlling factors and impacts (technical, economic, environmental and social). A national collaborative strategy is required to address the several options that exist for...
Publication: CIM Bulletin
Auteur(s): M. Scoble, L.K. Daneshmend
Mots clés: Mining technology, Holistic design and planning, Human resources, Education.
Numéro: 1023
Volume: 91
Année: 1998
Texte
Sommaire: Due to the randomness of all factors influencing the sintering operation, a two-stepped procedure is proposed to find the best way of using stocked fines at a plant producing Fe-Mn alloys for the steelmaking industry. The approach is based on the following: (1) predict the result of the sintering operation by establishing the best multilinear regression model using some of the characteristics of the loaded material; and (2) find the best solution under a minimizing cost criteria by solving a...
Publication: CIM Bulletin
Auteur(s): M.F. Almeida
Mots clés: Manganese ores, Modelling, Optimization, Regression, Sintering.
Numéro: 1023
Volume: 91
Année: 1998
Texte
Sommaire: A newly developed damage model was used in the study of rock fragmentation mechanisms involved in crater blasting. Simulations show that at the detonation of the explosive charge, a crushed zone around the explosive charge is formed due to compressive failure and then a strong pressure wave is sent out forming a pressurized ring that propagates at the dilatation wave velocity. As the pressurized ring leaves the crushed zone, two tensile stress components perpendicular to the radial stress are...
Publication: CIM Bulletin
Auteur(s): L. Liu, P.D. Katsabanis
Mots clés: Blasting, Rock fragmentation mechanisms, Simulations.
Numéro: 1023
Volume: 91
Année: 1998
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