Authors: M.A. Tyulenev, S.O. Markov, D.M. Dubinkin, V.V Aksenov

Title of the article: On the intensity of changing the performance of the autonomous heavy platform

Year: 2021, Issue: 1, Pages: 97-108

Branch of knowledge: 25.00.22 Geotechnology (underground, open and construction)s

Index UDK: 622.691.4:053:533.6(252.6)

DOI: 10.26730/1999-4125-2021-1-97-108

Abstract: In the previous work [20], we studied the influence of the type of loading of rock mass and the bucket capacity of the used excavator on the performance of an autonomous heavy platform (unmanned mining dump truck). It was found that the productivity of autonomous heavy platforms (ATP) with different types of loading decreases with different intensity: in the most favorable mode of joint work (bottom digging + bottom loading), the decrease in productivity is the most intense. This is due to the fact that in this operating mode, the component of the excavator cycle, which includes lifting a filled bucket and unloading it, takes a larger share than in other operating modes. Therefore, when working, for example, with loading above the installation level (which can happen, in particular, in confined conditions), the influence of the excavator swing angle does not play such an important role as in the "bottom digging - bottom loading" mode. The resulting dependencies can be used as a starting point for determining production rates for ATP; however, the authors consider it necessary to clarify that this requires pilot testing of drones in various mining conditions. This article presents the results of numerical modeling of the ATP performance at various transportation distances. The calculations were carried out for a hydraulic backhoe excavator with a bucket capacity of 7.2 m³ and an ATP with a lifting capacity of 90 tons. A preliminary conclusion is made about the need for a step-by-step (block-by-block) calculation of the ATP productivity due to different loading conditions during the development of complex rock-coal blocks.

Key words: open pit mining quarry dump trucks self-driving dump trucks rock loading dump truck performance heavy autonomous platform smart quarry Industry 40

Receiving date: 10.01.2021

Publication date: 29.04.2021

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