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One of the main objectives of the production sequencing in a mining is the maximization of the Net Present Value, combined with a sequence of mining development that seeks better operational flexibility of the mine while at the same time guarantees the goals of production and quality of the ore. In this context, the present article proposes a mining sequencing methodology for the Terrace Mining method for the Ponta da Serra gypsum mine, located in the region of Araripe, Pernambuco, Brazil. For this, it was held the dimensioning of equipments for the stripping operation (excavators and trucks) according to the required production. The results show that the proposed sequencing model for gypsum mining allows the reduction of costs in the stripping operation and the rehabilitation of the mined area, implying an eco-sustainable environmental approach to mining sequencing so that the exploited terraces serve the waste deposition with significant benefits associated with reducing environmental impact without compromising the goals of productivity and economic competitiveness.

MINING SCHEDULING OF GYPSUM EXPLOITATION BY TERRACE MINING METHOD: AN ECO-SUSTAINABLE ALTERNATIVE