What is the optimal cutoff surface for ore bodies with more than one mineral?

  • Lewis Ntaimo
  • Bernardo K. Pagnoncelli
  • A. Piazza
    • Categories Applications - OR and Management Sciences, Control Applications, Dynamic Programming Short URL: https://optimization-online.org/?p=17229

    In mine planning problems, cutoff grade optimization defines a threshold at every time period such that material above this value is processed, and the rest is considered waste. In orebodies with multiple minerals, which occur in practice, the natural extension is to consider a cutoff surface. We show that in two dimensions the optimal solution is a line, and in three dimensions it is a hyperplane.

    Citation

    Department of Economics, Faculty of Economics and Business, University of Chile, Diagonal Paraguay 257 of. 1305 C. Santiago, Chile. SKEMA Business School, Université Côte d’Azur, Lille, France Wm Michael Barnes '64 Department of Industrial \& Systems Engineering Texas A\&M University ETB 4029, College Station, TX 77843-3131, United States.

    Article

    Download

    View What is the optimal cutoff surface for ore bodies with more than one mineral?