急倾斜不稳定煤层斜分段正台阶采煤方法的运用

Application of Oblique Sublevel Positive-Step Mining Method on Steeply-inclined Unstable Seam

急倾斜不稳定煤层采用分段正台阶布置开采,综合了短壁、斜坡、台阶三种采煤方法的优点,适应于地质条件较复杂的煤层,各台阶面平行作业,提高了工作面的单产。

The paper has introduced a sublevel positive--step mining method on steeply--inclined unstable seams, which is combined the advantages of shortwall mining, incline method and step method, suitable for seams with complicated geological conditions and has improved the unit production of working face by the parallel work of each step surface.