In the article, the efficiency indicators of excavators used in open-pit mining processes proposed by the author were compared, and the indicators of efficiency in the mine when excavators performing cyclic operations and dump trucks worked as a single excavator dump truck complex. This procedure significantly increases the probability of completing the daily plan. This transportation of rock mass due to the redistribution of dump trucks between mining and loading excavators cause the failure of one or more aggregates of mining and processing equipment.

Excavators in the open pit, dump trucks, reliability of the transportation process in the open pit, system diagrams in the mine, mine mass, optimal mine plan, scheme of loading processes

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