The slope-sliding of Union Valley Open Pit Mine began at the mine development stage.
团结沟露天矿从基建时起即开始滑坡。
In combination with the boundary conditions of open-pit and the development system of the underground mining transferred from open-pit, a high efficient induced caving method is proposed.
结合露天开采的边界条件与露天转地下开拓系统条件，提出诱导冒落法高效开采方案。
In combination with the boundary conditions of open-pit and the development system of the underground mining transferred from open-pit, a high efficient induced caving method is proposed.
结合露天开采的边界条件与露天转地下开拓系统条件，提出诱导冒落法高效开采方案。
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