岩層穿脈斷面為3.6×2.9公尺,在夾有大量石英混合物的堅实的頁岩內掘進。支柱是採用疏離的不完全框架式棚子。炮眼是用带有气支支架的。—60型氣動鑿岩机來鑽鑿的。钎子是用長度3—3.5公尺,直徑22公厘的中空钎子鋼製成,並帶有直徑34—38公厘的鑿形活動鑽头,鑽头镶以《Poldi diadur》硬質合金片。消除岩石是利用苏 The cross-section of the strata is 3.6 × 2.9 meters and is drilled in solid shale with a large quartz mixture. Pillar is the use of alienated incomplete frame shed. Borehole is used with gas holder. -60 type pneumatic rock drill to drill. The brazier is made of hollow brazing steel with a length of 3-3.5 meters and a diameter of 22 mm. It has a chisel movable drill with a diameter of 34-38 mm. The drill is made of “Poldi diadur” hard alloy . Elimination of rock is the use of Soviet Union