关键词: 一次采全高, 综采工作面, 切顶卸压, 沿空留巷, 恒阻锚索

Abstract: Yushuquan Coal Mine has a shallow coal seam and simple geological conditions. It is suitable to use gob-side entry retaining technology. In order to improve the recovery rate of coal resources and reduce the number of heading roadways, Yushuquan Coal Mine adopts constant resistance large deformation anchor cable and steel belt reinforcement at 1014 working face, then carries out deep hole blasting technology to pre-crack the roof and cut the roadway along the gob-side. After blasting, it adopts temporary and permanent support to reinforce the supporting roof, and finally uses U-shaped steel to retain gangue, which has achieved good supporting effect.