Analysis and optimisation of life-of-mine haulage cost using simulation

CIM Montreal 2003
Gunnar Nyström,
Abstract Ore and waste transports form an important part of any mining operation and represents a large portion of the mine´s total operating cost. Mine layouts, truck fleets, production rates, shift schedules, maintenance strategies etc. are not at all static variables. They all change during the life of a mine. It is therefore essential for the successful mine management to constantly analyse and optimise the mine's transport systems.

Önnerlöv has recently conducted a life-of-mine haulage simulation project for Rio Tinto Zinkgruvan Mining, a medium sized, underground zinc producer, located near Örebro, Sweden.

The main project objective was to analyse the investments required to provide ore and waste haulage under changing conditions over an +10-years period: Deepening of the mine, changed production rates, changed layouts, changed truck fleet etc. A large number of scenarios will eventually be tested in the model in order to identify the "lowest cost per ton" solution.

The presentation comprises a brief background to the actual project, a demonstration of the Zinkgruvan simulation model, project conclusions and some useful hands-on tips for mining engineers and project managers how to run a successful simulation project.

Keywords: Simulation, Haulage, Rio Tinto Zinkgruvan Mining, AutoMOD
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