Design of ore pass systems for underground mines

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Mots clés : Underground mining;Rock mechanics;Ore pass design;Arches;Cohesive arch;Interlocking arch;Piping;Chutes
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Publication: CIM Bulletin
Auteur(s): D. LAN DPI All LT, B. GOARD
Mots clés: Underground mining, Backfill, Concrete pumping, Slurries, Pneumatic conveying
Numéro: 897
Volume: 80
Année: 1987
Texte
Publication: CIM Bulletin
Auteur(s): HERMANN HILBRANS, MICHAEL GAMROTH, GERHARD MELCHER
Mots clés: Pyrometallurgy, Copper, Smelting process, CONTOP, Developments, Cyclone smelting process
Numéro: 897
Volume: 80
Année: 1987
Texte
Sommaire: At last the legal red tape which has tied up flow-through share financing has been cut. New rules effective for deals signed after 1986 simplify flow-through financing by removing the necessity for cumbersome agency relationships. But there is no free lunch—the new rules require increased government reporting. And beware— federal tax reform promises to have a good look at the new flow-through share rules.
Publication: CIM Bulletin
Auteur(s): ROBERT B. PARSONS
Numéro: 897
Volume: 80
Année: 1987
Texte
Sommaire: Today's demand for better and more efficient methods inspires new approaches to construction and mine development.
A project at Asarco's Aquarius Mine provided a challenge that resulted in the adaptation of a civil construction technique to a mining application.
This paper describes the construction of an escapeway shaft to surface from the mine's 150 m level. The prime consideration was to provide the most cost-effective method of establishing a shaft collar in the 145 ft (44 m) of water-bea...
Publication: CIM Bulletin
Auteur(s): MICHAEL R. NADON, JACK J. AYOTTE
Mots clés: Underground mining, Mine development, Shaft collaring, Escapeway, Overburden, Raiseboring.
Numéro: 897
Volume: 80
Année: 1987
Texte
Sommaire: Kiena has been committed to developing a fresh management and employee relations approach since the commencement of production in 1981. The functional organizational structure encourages joint participation and commitment on the part of all employees to common goals in safety and production. The results over the last four years have been extraordinary. Kiena won the John T. Ryan Canada Trophy for 1983 for its safety record and has experienced a steadily increasing productivity through the...
Publication: CIM Bulletin
Auteur(s): BRIAN A. FERGUSON, RAYNALD O. VEZINA, RAOUL R. BOISSONNEAULT, MARIELLE GAUDET
Mots clés: Mine management, Productivity, Innovations, Underground mining, Mining systems, Employee relations
Numéro: 897
Volume: 80
Année: 1987
Texte
Sommaire: Intensive mechanization and automation in the LKAB, Kiruna Mine in Sweden have resulted in substantial rise in productivity and decrease in production cost. Capital investment in a modern mine today averages a considerable amount per miner and costs increase with requirements for more efficient methods and equipment. Equipment reliability becomes more and more important. Equipment maintenance requirements are directly proportional to equipment reliability and grade of availability. Weaknesses...
Publication: CIM Bulletin
Auteur(s): J. ERIC NYLUND
Mots clés: Underground mining, Mine equipment, Wear, Car design, Track design, Wheel design, Kiruna Mine, Maintenance, Cost
Numéro: 897
Volume: 80
Année: 1987
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