Design and Numerical Simulation of Safety Raw Pillar Replace with Backfill Body in Open-pit and Underground Combined Mining

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Design and Numerical Simulation of Safety Raw Pillar Replace with Backfill Body in Open-pit and Underground Combined Mining

ZHANG Jian-Gang, WANG Shao-Yong, WU Ai-Xiang, HAN Bin, YIN Sheng-Hua

Modern Mining . 2013, (12): 1 -5 .