露天转地下开采境界顶柱安全厚度研究

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刘恒亮, 张钦礼, 卞继伟

Research on Safety Thickness of Boundary Pillar during the Transition from Open Pit to Underground Mining

LIU Heng-Liang, ZHANG Qin-Li, BIAN Ji-Wei

金属矿山 . 2015, (10): 41 -45 .