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在急倾斜中厚煤层开采中，将长壁后退回采工作面施工成倒台阶状，按长壁采煤工艺正常开帮回采，即长壁后退台阶采煤法。每个台阶倾斜长２５～３０ｍ，成正伪斜６～８°布置，工作面设置防矸木带、挡煤板，以防止采后矸石冲击支柱和煤炭窜入采空区，采用煤矸砼墙护巷。针对上巷集中应力，采取加强巷内支护、采后卸载与调整台阶尺寸（上长下短）等措施，保证上巷行人和运输安全。
In the mining of steeply inclined middle-thick coal seams, the long-wall back-off working face is constructed into an inverted staircase, and the longwall coal mining process is normally used for mining, that is, the longwall back-step coal mining method. Each step inclined 25 ~ 30m, into the pseudo-oblique 6 ~ 8 ° layout, the face with anti-gangue wood, blocking the coal to prevent post-harvest gangue impact of pillars and coal into the goaf, the use of concrete wall Lane protection. Focus on the stress on the lane, take to strengthen the laneway support, post-harvest uninstall and adjust the step size (up and down short) and other measures to ensure the safety of pedestrians and transport lane.