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| Study on hard roof pre-splitting blasting pressure relief technology of roof cutting along goaf |
| Huang Jie, Yang Zhuang, Wang Huobin, Xie Pengfei |
| RongTai Mine,Shanxi Jizhong Energy Group, Lvliang 033000, China |
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Abstract In order to ensure mining convergenceimprove the recovery rate of coal resources, single with articulated beam along goaf was conductec in 10207 working face of Rongtai Mine, in order to ensure the cutting roof effect of intensive single, pre-splitting blasting pressure relief technology was adopted, providing reference for roof cutting under similar geological condition.
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