info:eu-repo/semantics/conferenceProceedings Mining institute Ltd., Belgrade application/pdf 705622 bytes eng 2022 8th Balkan Mining Congress, September 28-30, 2022, Belgrade Trivan, Jelena Kostić, Srđan Šalović, Mirko cutting force, energy consumption, overburden, mechanical properties, statistical analysis https://unilib.phaidrabg.rs/o:1122 Abstract: In present paper authors examine the impact of overburden mechanical properties on the cutting force and energy consumption of the bucket-wheel excavator at the opet pit mines. The conducted research consisted of two parts: experimental and analytical. Experimental phase included terrain and laboratory methods in order to determine the main properties of the overburden, as well as the performance of the excavator, at „Turija-Banovići“ case study. Analytical phase included the extensive statistical study of the obtained results, in order to detmine the impact of the examined overburden properties on the excavator performance. For this purpose, authors developed explicit mathematical models, where cutting force and energy consumption are represented as the linear function of statistically significant influential factors: unit weight, compressive strength and the cohesion of the overburden. Results obtained indicated that cutting force and energy consumption increases with the increase of unit weight, cohesion and compressive strength, while tensile strength and friction angle have statistically insignificant effect. Calibration of excavator cutting force and energy consumption considering the impact of the overburden mechanical properties All rights reserved