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Preprints, Working Papers, ... Year : 2023

Optimal control approaches for Open Pit planning


This work tackles the Open Pit planning problem in an optimal control framework. We study the optimality conditions for the so-called continuous formulation using Pontryagin's Maximum Principle, and introduce a new, semicontinuous formulation that can handle the optimization of a 2D mine profile. Numerical simulations are provided for several test cases, including global optimization for the 1D Final Open Pit, and first results for the 2D Sequential Open Pit. Results indicate a good consistency between the different approaches, and with the theoretical optimality conditions.
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Dates and versions

hal-03588436 , version 1 (24-02-2022)
hal-03588436 , version 2 (22-03-2023)


  • HAL Id : hal-03588436 , version 2


Emilio Molina, Pierre Martinon, Pierre Martinon, Héctor Rámirez. Optimal control approaches for Open Pit planning. 2023. ⟨hal-03588436v2⟩
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