Authors: A.A. Sysoev, E.V. Zlobina, I.A. Sysoev

Title of the article: Substantiation of technological parameters of the non-transport zone of the combined mining method of the coal seam at the stage of open pit designing

Year: 2019, Issue: 4, Pages: 84-89

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

Index UDK: 622.271.4

DOI: 10.26730/1999-4125-2019-4-84-89

Abstract: Domestic industry has the ability to produce various models of dragline in a wide range of performance, operating parameters and operating weight. Therefore, in the practice of designing open pits, the issue of choosing a dragline model is relevant, depending on the mining and geological conditions of the quarry field being developed by a combined system. The study substantiates the method of choosing a dragline model at the stage of an open pit designing, which ensures maximum efficiency in the development of non-transport mining zone under the existing conditions of the bedding. The recommendations are based on the results of multivariate calculations of technological parameters of excavation schemes under various conditions of bedding using various modifications of draglines corresponding to the model series. The set speed of pushing the extraction front can be ensured by various combinations of bucket capacity and length of the dragline boom, the specific values of which, given the existing geological conditions of the coal seam, must be set on the basis of the minimum operating weight of possible dragline models options.

Key words: dragline rational dragline selection non-transportation technology соmbined mining method mining and geological conditions selection of mining equipment designing of open pit mining operations

Receiving date: 02.04.2019

Approval date: 01.01.1970

Publication date: 19.12.2019

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