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A new model for automated pushback selection
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DOI：10.1016/j.cor.2018.04.015.png)
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The design of pushbacks is essential to long-term open pit mine scheduling because it partitions the pit space into individual units, controlling ore and waste production. In this paper, a new model is proposed for the pushback selection procedure, which consists of characterizing the potential pushbacks based on the comprehensive family of nested pits and selecting those ones that meet a set of criteria, for instance, bounded ore and waste. An advantage of this method is the possibility to automate the pushback selection methodology, applying well-defined criteria for the selection and reducing the time employed in the planning task. (C) 2018 Elsevier Ltd. All rights reserved.
Keyword:
Long-term open-pit mine planning
Nested pits
Pushback selection
Mixed integer programming
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