Authors: V.A. Ermolaev, A.V. Selyukov

Title of the article: Development of a methodology for evaluation of the state of mining operations of open pit mines to determine their coal mining capabilities

Year: 2021, Issue: 3, Pages: 4-49

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

Index UDK: 622.271.3

DOI: 10.26730/2618-7434-2021-3-4-49

Abstract: At conducting at open pit mines of obligatory state reporting on movement in the course of mining works of reserves of coal there is no accounting of movement of volumes of the preparatory stripping works which close access to reserves, despite considerable, defining economy of open coal mining, expenses for their production. There is no accounting in the reference to the reserves being finalized the volumes of overburden remaining in the boundaries of the work in total and including with not started in the contour layers mining preparatory overburden works and performed on the upper horizons partially. It is unknown the advanced volumes of stripping on the upper horizons, which have not yet been completed with coal extraction, etc. Because of this situation, all the existing estimates of the position of mining works, their possibilities for coal extraction at a certain productivity of the section on the rock mass are largely subjective.
This article presents an analysis of the information available at the open-pit mines of JSC "Kuzbassrazrezugol" about the position of mining works and their development. The tabular forms of the account, mutually coordinated within the limits of intermediate contours of mining works (technological cycle of producing of coal mining) movement of industrial reserves of coal and volumes of overburden closing access to reserves for the accounting period are developed. The tabular and graphic forms of information about the position of mining works at the reporting time and the analytical characteristics of the position are developed. The forms are filled with information with a conditional example. A methodology was developed to determine the indicators of the development of mining operations in the open pit, taking into account the current position of the works.

Key words: open pit mining mining front development industrial coal reserves stripping ratio work in progress reserves availability degree quarry design

Receiving date: 25.08.2021

Approval date: 15.11.2021

Publication date: 17.12.2021

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