Study of problems caused by oversized boulders in a mine production system: A case study

ABSTRACT The aim of this paper is to present a study that deals with the problem of oversized boulders in a mine production system. This work was performed to study and analyze the disturbances caused by oversized boulders and estimate their impact on the production system at the LKAB Kiruna Iron Ore Mine, Kiruna (KIOM). The results from this study show that by elimination of oversized boulders from the production process, the production capacity and system utilization of a mine like KIOM can be considerably improved.