Trends in access and transportation costs in underground mining
Fernando Alves Cantini Cardozo; Carlos Otávio Petter
Abstract
Underground mining entails significant investments in accesses, such as ramps and shafts, impacting both initial investment (CAPEX) and operational costs (OPEX). Studies offer models to estimate these costs, considering depth and production rate. Operational transportation costs vary with production and depth, with different studies recommending ramps, shafts, or conveyor belts for economic efficiency. The share of transportation costs in total OPEX is relevant and influenced by the adopted strategy, with models estimating these costs considering depth and required support. In summary, access and transportation costs in underground mining are considerable, with the choice of method influenced by technical and economic factors. This article provides a review and evaluation of implementation and operational transportation costs in underground mines, indicating a trend of lower costs for shaft transportation with mine deepening. The evaluated studies also provide estimates of average costs to assist in initial project estimates.
Keywords
References
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Submitted date:
01/16/2025
Accepted date:
04/27/2025
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