Authors: A.V. Selyukov, D.D. Terentyev

Title of the article: To substantiate the mining regime of deep-continuous development systems with an excavator-dump overburden technological complex

Year: 2025, Issue: 4, Pages: 91-102

Branch of knowledge: 2.8.8 Geotechnology, mining machines

Index UDK: 622.271

DOI: 10.26730/1999-4125-2025-4-91-102

Abstract: The open-pit mining of Kuzbass coal deposits is mainly determined by the following spatial principle of mining operations - along the strike line of the formation formation. According to this, the covering and enclosing overburden rocks from the face are transported by means of motor transport to external dumps, which generally determines the negative impact of the mining enterprise on the environment. Technological solutions are known – an in-depth continuous development system, when the overburden is placed in an internal dump. When justifying the type of excavation equipment for this system, it is necessary to take into account its main feature – the alternate production of overburden and mining operations in a coal mine with one excavator. Moreover, the main requirement is imposed on mining operations, which consists in ensuring the selective development of formations with minimal losses and clogging of coal with rock. Therefore, mining operations in the conditions under consideration are leading in the selection of equipment and calculation of the parameters of the development system. To ensure a low level of coal losses, the excavation of the formation should be carried out from the side of its roof, and the trajectory of the cutting edge of the bucket teeth should coincide with the direction of the formation. Therefore, the technological capabilities of the excavation equipment should most fully meet this condition. In this study, the choice of the type of excavation equipment is based on a comparison of the conditions of occurrence of layers in the rock-coal excavation and the technological capabilities of single-bucket excavators for excavation - reverse hydraulic shovels (excavator type EGO), with a distinctive feature (calculation of parameters) from previously existing works - the laying of the worked-out space of the coal deposit.

Key words: reverse hydraulic shovel ledge height displacement pitch rock-cut worked-out space

Receiving date: 09.12.2024

Approval date: 22.06.2025

Publication date: 28.08.2025

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