Structure Parameter Optimization of the Medium-hole Pillar Caving Method with Mining Preparation out of Veins and Subsequent Backfilling

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Structure Parameter Optimization of the Medium-hole Pillar Caving Method with Mining Preparation out of Veins and Subsequent Backfilling

HE Zhong-Guo, JI Xiao-Fei, YIN Xu-Yan

Metal Mine . 2016, (11): 54 -57 .