During stoping in large height mining working face, broken roof side, rib spalling and roof fall are prone to happen under overhand mining, overhand mining should be avoided in the design of large height working face. 2612 working face in Dongpang Mine and 2222 working face in Xingdong Mine with the problem above, broken roof, rib spalling, over height affected working face in early stage of stoping, anchor reinforcement and grouting reinforcement were adopted, which improved the mechanical properties of coal wall and roof, ensured the complete of roof side, provided advantages for large height mining working face stoping and technology to achieve efficient and effective production.
贾增志. 大采高综采工作面仰采顶帮控制技术[J]. 煤炭与化工, 2015, 38(3): 114-115.
JIA Zeng-zhi. Large Mining Height Fully Mechanized Working Face Overhand Mining Roof Side Control Technology. CCI, 2015, 38(3): 114-115.