Determination of some mining parameters of the long wall for the effective use of plough systems in the Western Donbas mines

Oleksii Voloshyn,Olena Nykyforuk,Oleh Riabtsev,Siarhei Onika,Serhii Protsak,A Bulat,O Zhevzhyk,B Liu,O Voloshyn,V Heyets,Y Kryzhanivskyi

doi:10.1051/e3sconf/202016800067

Abstract

Theoretical studies of stress strain state of rock under the extraction pillar working by mechanized complex with plough systems were conducted. As a result of studies the mining parameters of the wall face working are presented. The mining parameters include the width of coal shavings continuously removed before reaching the critical rock pressure in the face and duration of the technological pause between removal of coal shavings, that leads to “relaxation” of rock pressure in the bearing zone to a safe state for continued mining. The use of the values of these parameters during the extraction pillar working ensures efficient and no-failure operation of high-performance mechanized complexes equipped with plough systems as shown by the example of mining and geological conditions of one of the mines of the Western Donbas.

Highlights

Analyzes of the past and current states of world coal production and consumption show that coal still remains one of the main resources with high role in the fuel and energy complex
The above complex scientific and practical problem has been solved by the example of one of the long wall geological and mining conditions in the mine of the Western Donbas, which has been equipped with a mechanized complex DBT and plough system GH 9-38ve
The excavation column has been conditionally divided into 6 sections, differing in geological conditions determined by exploration wells located on the field of the excavated mining column

Summary

Introduction

Analyzes of the past and current states of world coal production and consumption show that coal still remains one of the main resources with high role in the fuel and energy complex. In this case, the bearing zone "creeps" onto the wall face, which can cause various negative phenomena, such as destruction of rocks of the immediate roof in the wall face with the formation of destruction domes, delamination of the main roof rocks, the destruction of the coal seam, the extraction of the coal seam into the wall working space, the coal outburst, etc

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Conclusion