Open pit stochastic optimization with in-pit tailings storage

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Management and storage of waste and tailings are critical concerns in open pit mining, especially when the available space is limited but also to reduce the impact of the activities on the environment. This paper presents a new SIP model which simultaneously optimize the blocks extraction sequence and the in-pit disposal of tailings and waste material. The model, which also considers geological uncertainty with a set of simulations, is tested over a low dip iron ore deposit. The results are convincing in terms of space saving and impact on the production and thus demonstrate the potential of such an approach.

, 10 pages

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