Long and Short Term Production Scheduling at LKAB's Kiruna Mine

Chapter 1
LONG- AND SHORT-TERM PRODUCTION
SCHEDULING AT LKAB’S KIRUNA MINE
Alexandra M. Newman
Division of Economics and Business
Colorado School of Mines
1500 Illinois Street
Golden, Colorado, 80401 USA
Mark Kuchta
Mining Engineering Department
Colorado School of Mines
1500 Illinois Street
Golden, Colorado, 80401 USA
Major Michael Martinez
Department of Mathematical Sciences
United States Air Force Academy
Colorado Springs, Colorado, 80840 USA
Abstract LKAB’s Kiruna mine is an underground sublevel caving mine located above the
Arctic circle in northern Sweden. The iron ore mine currently uses a long-term
production scheduling model to strategically plan its ore extraction sequence. In
this chapter, we describe how we modify this model to consider several different
levels of time resolution in the short- versus long-term, and provide guidance
for increasing model tractability. We demonstrate numerically the increase in
schedule quality and model tractability as a result of these modifications.
Corresponding author
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