Traditional open-pit mining boundary features fixed slope with benches and planar bottom.
传统的露天矿开采境界为固定帮有台阶、露天底平面型。
The result shows that the development of the mining pit is affected by the interaction between the flow in the vicinity of the mining pit and its boundary.
试验成果表明，采砂坑内及其附近的水流与采砂坑边果相互作用的结果。
The stability of boundary pillar, which can be found across in mine shifting from open-pit to underground mining, is very important for safe production of underground mine.
境界矿柱稳定性分析是露天转地下矿山经常遇到的问题，对于矿山进行地下开采安全生产极其重要。
The optimization design mainly consists of two contents: adjustment of the mining boundary of open pit and optimization of production scale.
优化设计主要包括两方面的内容：露天开采境界的调整和生产规模的优化。
The establishment of the computer model for the ore body of open pit mine is the basis for the optimization of deposit mining boundary and the mining production scheduling.
露天矿矿体计算机模型的建立是进行矿床开采境界优化及制定矿山生产计划的基础。
The ore-body block model is not only widely used in ore grade and reserve calculation, but used in the optimization of the final mining boundary and mining plan in the open pit.
矿体块状模型广泛应用于品位、储量计算，也可用于露天矿最终开采境界优化和开采计划优化。
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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