Abstract
In this paper, it will take in-depth research, site practical methods, and provide reasonable solutions to several key problems, such as conveyor and hydraulic support sliding；shearers badly sloped；the roof management of return airway when the working face lengthened；dealing with the upper corner gas；gangue fleeing；turn mining，which seriously affect production during high inclination-angle fully mechanized mining at 3# coal seam of the second mining section of ChengShan coal mine.
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