Государственное высшее учебное заведение "НАЦИОНАЛЬНЫЙ ГОРНЫЙ УНИВЕРСИТЕТ"
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Devices Affording Protection Of Roads Or Walls For Sound Insulation
(AREA)
Abstract
A method for protection of a mine working includes working out of breakage face with formation of zone of support pressure to the side of the massif, installation of reinforcement fixation in the working that is protected at the face coming to it by distance not larger than the width of the zone of support pressure. After installation of reinforcement fixation one determines total width of the zone of disintegration of rock massif from the production face and the working and then one terminates working out with leaving coal pillar that corresponds to given width.
UAU201111649U2011-10-032011-10-03A method for protection of a mine working
UA69955U
(en)