Estimation of large open pit haulage truck requirements

Abstract Open pit mine management must ensure that sufficient trucks are available and are being used effectively for production, and that operating costs are under continued control and review for improvements. This paper describes methods for estimating truck fleet requirements which have been used effectively at large- and medium-sized open pit mining operations. Applied to commonly available data, multiple regression analyses can indicate when mine plans should be revised toward optimizing the number of trucks required. Prediction of major cost items for budgetary purposes is addressed, along with an example of how readily available production data can be used to reduce costs systematically.
Keywords: Open pit mining, Equipment, Truck fleets, Mine management, Operating costs, Production costs.
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Summary: 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
Author(s): E.I. Robinsky
Keywords: Environment, Dam failures, Tailings spills, Thickened tailings disposal.
Issue: 1028
Volume: 92
Year: 1999
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Summary: 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
Author(s): S.C. Tadolini, J.L. Gallagher
Keywords: Coal mining, Ground support, Rock mechanics, Underground mining.
Issue: 1028
Volume: 92
Year: 1999
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