o:1119 Evaluation of excavator energy consumption and overburden cutting resistance using multiple linear regression en Abstract: In present paper the energy consumption of the excavator and overburden linear cutting resistance by invoking the multiple linear regression was examined. As a result, the corresponding models as nonlinear functions of physical and mechanical overburden properties: grain size, unit weight, cohesion, and friction angle, were proposed. The analysis was based on records made at ''Tamnava Eastern Field'' mine for the bucket-wheel excavator with new excavation teeth. The obtained results indicated that excavator energy consumption significantly depended on the grain size and cohesion, as individual factors, while the effect of two-factor interactions was particularly significant: clay percentage with cohesion and small grained sand fraction, and friction angle with medium grained sand and cohesion. On the other hand, linear cutting resistance of the overburden was largely controlled by all the examined physical and mechanical properties (grain size, unit weight, and shear strength), with the following significant two-factors interactions: shear strength parameters with all grain size fractions, different grain size fractions among each other, and friction angle with unit weight. cutting resistance, energy consumption, unit weight, grain size, shear strength, multiple linear regression 1552102 https://doi:10.5937/JMMA2201039T 1552101 1450-5959 1552099 10.5937/JMMA2201039T 2022-12-27T12:15:58.041Z 44 no 46 Jelena Trivan University of Banja Luka, Faculty of Mining Prijedor, Prijedor, Bosnia and Herzegovina Srđan Kostić Institut za vodoprivredu "Jaroslav Černi" person 0000-0002-3705-3080 application/pdf 707581 https://unilib.phaidrabg.rs/o:1119 no yes 1 70 92000001 71A04 Journal of Mining and Metallurgy, Section A: Mining 58 A 1 39 47 Tehnički fakultet - Departman za metalurgiju, Bor 2022 Received: March 15, 2022; Accepted: October 20, 2022