In this paper, the research is carried out deeply aimed at the problems of the structure parameters of underground stope for transition from open pit to underground Mining in Shirengou Iron Mine.
针对石人沟铁矿露天转地下过渡期开采I区地下采场结构参数问题展开了深入研究。
During the mine from open - pit to underground mining, a key question is how to keep the stable transition.
在露天转地下开采过程中，一个关键问题是如何确保其平稳过渡。
The key problem of transition from open-pit to underground mining is to realize smooth transition, whose key is output cohesion.
露天转地下开采矿山关键问题是如何实现平稳过渡，而平稳过渡的关键是产量衔接问题。
The output connection in transitional period was one of the key technical difficulties during the transition from open-pit to underground mining.
过渡期的产量衔接是矿山露天转地下开采关键技术难题之一。
The hanging wall ore of the open-pit is one of important projects in transition from open pit to underground in Daye iron mine, and the shallow hole shrinkage mining method is adopted in the project.
大冶铁矿露天采场挂帮矿是该矿山露天转地下项目的重要工程，采用浅孔留矿法进行开采。
The hanging wall ore of the open-pit is one of important projects in transition from open pit to underground in Daye iron mine, and the shallow hole shrinkage mining method is adopted in the project.
大冶铁矿露天采场挂帮矿是该矿山露天转地下项目的重要工程，采用浅孔留矿法进行开采。
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