PROCESS FOR MINING THICK COAL LAYERS WITH INCLINATION UP TO 45 degree

摘要

the invention relates to a process for operating stratelor thick coal, whose inclination angle is 45 degree.the process according to the invention, provides the artificial ceiling for the lower, under the metal to be constituted of a poditura mounted, articulated beams of miningcoupled between them and arranged after the promotion of stable slaughter at distances.the inclination, the rows of beams are strengthened between them with anchors, fashioned from steel cables.provided with coupling hooks at the ends or heads of iron round having bent to approximately 70 degree for mounting in some rings welded beams articulated.the first row of beams is strengthened with anchors of cable of some beams buried in hearth in the gallery of head and ruggedized poles.in the beams is mounted a net wire. this solution presents the advantage that reduce the consumption of timber and creates conditions for mechanized coal cutting.