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| Heavy Comprehensive Support Safe and Quick Retracement Technology |
| MIAO Wen-tao1,2, HE Jian-rong2, ZHANG Zhang1, JI Xiao-rong2 |
| 1.No.203 Research institute of China National Nuclear Corporation, Xianyang 712000, China;2. BinChang Coal Mining Corporation, Xianyang 713500, China |
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Abstract Based on heavy caving bracket retracement conduction study in Huoshiju mine, without reservation retracement channel fast removal technologies were pioneered and successfully implemented. The practical application of the technology process, preparation and safety precautions were was summed up. The system safety analysis of its technical economic benefits provided experience for caving face heavy bracket retracement.
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