Authors: M.S. Mamaeva, S.V. Goryunov, A.A. Khoreshok

Title of the article: The influence of the properties of moisture-containing soils on the efforts of resistance to digging with a bucket excavator type "reverse bucket"

Year: 2024, Issue: 2, Pages: 51-58

Branch of knowledge: 05.05.06 Mining machines

Index UDK: 622.6

DOI: 10.26730/1816-4528-2024-2-51-58

Abstract: During open-pit mining operations, due to the moisture-containing rock mass sticking on the excavator bucket’s inner surface, the working volume decreases by about 15-35% at different seasons, depending on the amount of stuck mass. The struggle against sticking methods analysis at a several mining enterprises in Kuzbass has shown the lack of diversity. The article deals with the issues related to the influence of the sticking process on the resistance forces that arise when moving rock mass on the bucket surface of the "Reverse bucket" excavator type. The conducted studies make it clear that the effort spent to overcome soil sticking when rock mass cutting depends from the bucket surface contact area with the rock mass, and when the area decreases, it will also decrease. Thanks to these data, we can say that the total flow rock mass total flow’s separation, or the so-called “clay shaving”, will allow its fractionation into several streams, which will reduce sticking on the bucket’s surface.

Key words: soil excavator reverse-bucket clay shaving drawing prism digging resistance force geometric elements calculating scheme

Receiving date: 29.10.2023

Approval date: 30.04.2024

Publication date: 06.06.2024

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