Authors: V.L. Martyanov

Title of the article: Evaluation of the working out difficulty on quarry fields of Kuzbass coal deposits

Year: 2018, Issue: 1, Pages: 35-41

Branch of knowledge: MINING AND GEOTECHNICAL ENGINEERING

Index UDK: 622.223.013 (571.17)

DOI: 10.26730/2618-7434-2018-1-35-41

Abstract: The issue of quantitative and qualitative assessment of the mining-and-ge-ological and technological complexity of deposits that increase the reliabil-ity of designing and planning of open mining operations is given a signifi-cant accent in industry documents and scientific works. So, in the practice of coal prospecting, seam classification is performed not only by their thickness for open-pit mining, but also from the point of view of their qual-itative assessment of complexity. For this purpose, simple strata are distin-guished – without rock layers, complex structure – in the presence of one or two rock layers and a very complex structure, when the beds are repre-sented by frequent interbedding of coal layers (bundles) and rock layers. In this case, layers of a complex and very complex structure containing rock interlayers, depending on their thickness and ash content, are divided into workable (meeting modern standards) and unworkable ones. Factors that can adversely affect the performance of a mining enterprise are identified. As a result of the evaluation of the technological properties of coal seams and also the geological conditions of operation, the degree of geological complexity of the field should provide an opportunity to make a sufficiently reliable economic evaluation of the industrial value of the field for holding a tender or an auction for the granting of a license for the extraction of minerals.

Key words: open pit mining quarry design order of develop-ment mining planning complex coal deposits

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