Authors: A.A. Cherepov

Title of the article: Geomechanical support of shortwall technology for development of thick coal seams

Year: 2018, Issue: 1, Pages: 66-74

Branch of knowledge: Earth sciences

Index UDK: [622.831:622.273.3]:519.876.5

DOI: 10.26730/1999-4125-2018-1-66-74

Abstract: This article is devoted to the studies of geomechanical support of shortwall technology for development of thick coal seams. It aims to confirm the practical possibility of mining a thick coal seam prone to manifestation of gas dynamic events by shortwall faces at a depth of over 200 m, and to identify the regularities in the distribution of stresses and strains of rock strata in mining rock-bump hazardous seams by shortwall faces. The article describes the developed system of geomechanical support of the technology for mining thick coal seams prone to rock bumps by shortwall faces. The current problem is the development of coal deposits, including formations of thick coal seams, as the technologies for their development, both by long and short faces, feature certain shortcomings. In the process of pilot-industrial implementation of the technology for mining a thick coal seam prone to spontaneous combustion and gas dynamic events by shortwall faces, the regularities and recommendations important for mining practices and for the mining science have been developed.

Key words: coal seam thick coal seam shortwall mining technology rock bump Raspadskaya-Koksovaya gas-dynamic events

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