Authors: A.V. Strelnikov

Title of the article: Typical faces passports for the development of coal-bearing zones of Kuzbass quarry fields with backhoes. Part 1. General provisions

Year: 2019, Issue: 3, Pages: 4-20

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

Index UDK: 622.271.3

DOI: 10.26730/2618-7434-2019-3-4-20

Abstract: Since the middle of the 90s of the XX century, backhoes have been actively introduced at the Kuzbass open-pit mines to develop coal-bearing zones of open-pit mines. Their application in the coal-bearing zones, characterized by seams occurrence in the number from 2-3 to 12-14, different angles of occurrence - from 4-5 to 90 degrees, different thickness of rock interlayers - from 3-4 m to 80-120 m, inevitably put a number of scientific and practical tasks for the adaptation of excavators to these mining and geological conditions in order to effectively use the working parameters and ensure high productivity. The need to adapt this type of excavators to the conditions of coal-bearing zones is due to the presence of contradictions between the technological conditions of mining operations and the conditions of efficient use of excavators. Therefore, to solve the problem of adaptation of hydraulic backhoes it was necessary, first of all, to develop standard passports of faces from which it is possible to make layer technological schemes for any conditions of a geological structure of trenches and cuts. Face passport as a graphical representation of the face development scheme is the primary (main) working document for the mining foreman and excavator operators. In this case, the layered trenching or cutting scheme is a secondary and non-working document. Its purpose is to show the sequence of works on passports taking into account their technological interrelation. The geological structure of coal bed formations at inclined and steep deposits of Kuzbass has been studied for the purpose of developing passports for bottom-hole operations; the structure of trenches and benches cut during calendar planning has been systematized; a system of restrictions has been developed to reveal the correlation between the technical capabilities of the excavator to perform working operations of excavation and loading of the rock mass with the parameters of layer elements.

Key words: coal-bearing zone open pit mining quarry face passport hydraulic excavators Kuzbass

Receiving date: 24.07.2019

Publication date: 30.12.2019

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