ROCK DISINTEGRATION CHARACTERISTICS IN UNDERGROUND COAL MINING
The article describes notions essentially different from common approaches to geomechanical processes in coal mining with long purifying pit-face. Considered the most difficult part - directly into the well bottom of the mass of islands, that is at the interface of the radial unloading rocks in front of the face to the Verti-Kalnoy unloading above and below the goaf. Instrumental verification of the adequacy of the outlined approaches to geomechanical processes in coal mining is based on measuring of the preasure in powered hydraulic struts, «Alardinskaia» mine, Kuzbass. Recommendations for practical use of the results are given.