Návrh přípravy a dobývání porubních bloků ve sloji 074 /21a/ jižně od třídy č. 080 7254 v 2. důlním poli dobývacího prostoru Staříč OKD, a.s., Dolu Paskov

Abstract

In this diploma thesis is process a concept of preparation and mining of long wall blocks in the seam 074 (21a) south direction from the gate No. 080 72 in the 2nd mine field of mining area Staříč OKD, Mine Paskov. There is a brief description of geology structure of both Mine itself, then the interest area. There is also a proposal making to coal seam by underfloor´s opening and preparation of coal seam to mining with heading technology, including the calculation of the density of support and convergence of the mine corridor, using by accompanying support, during transit by the individual longwall. The following item occupied with method to minimg disposed longwall blocks including mining technology and calculate of the stress of support. Finally, there are safety measures and economy evaluation.