The invention relates to the technical field of steeply pitching
coal seam mining, and discloses a steeply pitching
coal seam mining method. The steeply pitching
coal seam method includes the following steps that step 1, an air return way is horizontally formed along the trend of the seam on the upper part of a section, and a transportation way is horizontally formed along the trend of the coal seam on the lower part of the section to the boundary of a mining area; and step 2, open-off cuts are obliquely arranged along the trend of the coal seam, and the angle range between the open-off cuts and the transport way is 8 degrees to 40 degrees. According to the steeply pitching coal seam mining method, a main
system of the mining area, the air return way, the transportation way and a working face roadway are enabled to form complete U-shaped ventilation, meanwhile, the main
system of the mining area, the air return way, the transportation way, the working face roadway and a mining
system jointly form a high-efficiency, high-yield and safe long-wall mechanized mining working face based on the
coal mining process, non-minable coal seam becomes mineable coal seam again, a ventilation system cannot be damaged with the mining of the coal seam, the mining efficiency of the coal seam is greatly improved, the safety is improved, and the level of
automated mining is improved.