%0 Journal Article %T Safety Analysis of Synergetic Operation of Backfilling the Open Pit Using Tailings and Excavating the Ore Deposit Underground %A Zhang, Qinli %A Zhang, Bingyi %A Chen, Qiusong %A Wang, Daolin %A Gao, Xiang %J Minerals %V 11 %N 8 %@ 2075-163X %D 2021-07-28 %I Multidisciplinary Digital Publishing Institute %~ DeepDyve