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The transportation costs in an open-pit mine operation can account for 40–60% of the total costs. The objective of this study was to carry out a comparison between two ore transportation methods: conveyors and haul road trucks. A state-of-the-art assessment was carried out, as well as a case study applied to a large iron ore mine located in ...

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1. Introduction. This paper proposes a system for the Sequencing and Scheduling Problem in Open Pit Mining with Loading Equipment Allocation, which is responsible for developing a sequence of blocks and respective production rates to be implemented by the loading equipment (wheel loaders or excavators) over a mediumterm horizon through the generation of mining orders.

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cessive mining orders. Since 1965, Operational Research techniques have been applied in open pit mines by using the dynamic programming algorithm proposed by Lerchs-Gross-mann in order to design the optimal pit of a mine, i.e., to define the blocks which mining maximizes the profit (Newman et al. [1]). According to Amaral & Pinto [2],

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Mining companies that produce gravel for use in the construction industry from open pit mining using explosives and from rock beneficia-tion, such as granite and basalt, are designated as "pedreiras" in Brazil. This differentiates them from other types of mining, similarly to …

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Mining - SciELO

Short-term mining operations in limestone mines – diagnosis and proposition for improvement 2. Object of the case study The mine analyzed in this case study, located in the municipality of Caçapava do Sul as shown in Figure 1, is an open-pit mine with bench heights of 6 to 15 meters, in which dolomitic marble has been extracted since the