Influência do estado de conservação das vias de acesso nos indicadores de custo e produtividade de caminhões na mineração Aricá

Abstract

There is a debate about the importance of managing cost combined with high productivity and in times of crisis it is essential for a company's financial health to combine productivity with cost.This paper seeks to relate the costs and productivity linked to the infrastructure, knowing that the quality of a mine's roads directly impacts the productivity of cargo and transport equipment, as well as their maintenance cost.The most susceptible points for trucks to break down are the machine feet on each mining front and the sterile piles.In the case of sterile piles, the material is deposited without any ideal compaction and with a large flow of trucks. Another factor that directly influences the conditions of accesses is the physical availability of infrastructure equipment, as these equipment directly support the problems previously mentioned.Infrastructure equipment is basically: motor grader (patrol), crawler tractor and wheel loader. And during this paper, we will see that the mitigating measures adopted by the company, such as the standardization of the creation of accesses and the daily maintenance of the roads and the increase in the physical availability of infrastructure equipment, have positive effects. The graveling of the access ways of the sterile heaps is done empirically and achieved satisfactory results. The method consists of applying a 20-30 cm layer of gravel found in the mine itself and the compaction is done by the trucks themselves; the combination of proper track maintenance and greater control over the machine feet shows us a positive effect both in the reduction of maintenance hours and in an increase in the productivity of the equipment.