Analysis of Mine Mobile Fleet Maintenance vs. Mine Roads Maintenance for Optimum Performance

摘要

The expansion of the mining operations world-wide leads to development of large vehicles. In the past the design of the mine haul roads was done empirically based on the local experience; this way is not applicable anymore because the extreme increase of the truck sizes which demands more focus on mine haul roads quality and performance. The inadequate designs will not only increase the mine haul road maintenance but also will increase the overall operating and maintenance costs of the vehicles. Therefore it is necessary to improve the designs and quality for the mine haul road.The aim of this study is to find out the optimum points which indicate the minimum maintenance cost for both transportation machineries and mine haul roads for both surface and underground mines. The parameters which considered for the transportation machineries are tires consumption, vehicles parts consumption, and maintenance labor hour costs. The major problems in the mine haul roads and vehicles are discussed. The maintenance and rehabilitation of the pavements deterioration are also considered with respects to their costs besides the minimum accepted values for the pavements performance levels. Consequently, the achievements will comprise minimizing the operation costs, and optimizing the availability and performance/capacity of mobile fleet.