Estimation of large open pit haulage truck requirements

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Mots clés : Open pit mining;Equipment;Truck fleets;Mine management;Operating costs
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Texte
Sommaire: In light of the recurring spills and failures of conventional tailings disposal pond dams, a brief review of the Thickened Tailings Disposal (TTD) system is presented. It is shown that by the process of thickening the tailings to a heavy slurry prior to disposal, it is possible to create a self-supporting deposit of tailings and to eliminate the typical superimposed settling pond. These features, together with the ability to reclaim the disposal area even as mining continues, preclude an...
Publication: CIM Bulletin
Auteur(s): E.I. Robinsky
Mots clés: Environment, Dam failures, Tailings spills, Thickened tailings disposal.
Numéro: 1028
Volume: 92
Année: 1999
Texte
Sommaire: Cable supports offer several advantages over traditional secondary support methods by enhancing stress redistribution to pillars and gob areas, minimizing or eliminating timbers and cribs that reduce ventilation, eradicating material-handling injuries related to placement of crib supports, and providing a cost-effective alternative to secondary support. The U.S. Bureau of Mines (USBM), researching alternatives to traditional roof support methods, designed and installed high-strength cable...
Publication: CIM Bulletin
Auteur(s): S.C. Tadolini, J.L. Gallagher
Mots clés: Coal mining, Ground support, Rock mechanics, Underground mining.
Numéro: 1028
Volume: 92
Année: 1999
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