Selection of a rational truck model for waste transport at the open pit Gacko using the ahp method

Abstract

This work presents the principle of optimal model truck selection for waste transport at the open pit Gacko. The analysis was performed for three types of trucks: Belaz 7555, Belaz 75491 and Belaz 75135. Selection of the optimal model was done using the AHP method from the group of multicriteria decisionmaking methods. The work presents the analysis results of the technological procedure of waste transport at the open pit Gacko and evaluation the most important criteria for an optimal type truck selection. In selection the important criteria and assessment the degree of their impact, a questionnaire method was used that was conducted among the mining engineers at the open pits Gacko, Pljevlja, Šuplja Stijena and Mining and Metallurgy Institute Bor. Testing and calculations were done for the truck types and models that have been in long-term use at the open pits. The research pointed out that the best results, according to a number of criteria, are shown by the trucks with a carrying capacity of 55 tons (Belaz 7555), which are also the smallest carrying capacity that was tested.