Abstract
The paper discusses the factors that limit the growth of coal production in Kuzbass. They were identified by the results of statistical analysis of the actual production indicators of working faces in eight thick coal seams. Technological solutions for the rational control of hard-to-break roof rocks, the shape and size of coal pillars, which ensure the stability of protected workings and isolation of the worked-out area from endogenous fires, are substantiated.
Highlights
IntroductionFrom 17.6 to 18.2% of this mineral is concentrated in our country
The Russian Federation ranks second in the world in terms of coal reserves
The statistical analysis of the daily production volumes based on the operation results of eight faces in the thick seams of the mines in Tom-Usinskoye and Erunakovskoye fields are shown in fig
Summary
From 17.6 to 18.2% of this mineral is concentrated in our country In absolute figures, this is over 157 billion tonnes (107.9 billion tonnes of lignite coal and 49.1 billion tonnes of hard coal). There are significant reserves of coal – 31.8 billion tonnes which can be mined by open-pit mining. The bulk of these coals – 19.4 billion tonnes or 60.9% is concentrated in the seams with a thickness from 3.51 to 15 m; 11.9 billion tonnes (37.5%) is concentrated in layers from 1.21 to 3.5 m, and 496 million tonnes – in the seams with a thickness of over 15 m [2]
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