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通过在急倾斜煤层采空区内掘进,采取一定的措施和方案,探明急倾斜煤层下方开采对上方煤层的破坏情况,为采空区复采提供可行性依据和开采方案依据,提高资源回收。
Through the excavation in the goaf of the steep coal seam, certain measures and schemes are taken to ascertain the damage to the coal seam above the steeply-inclined coal seam and provide feasible basis and mining scheme basis for the recovery of the goaf and improve the resource recovery .