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作 者:Christopher Newman David Newman Robert Dupuy
机构地区:[1]Appalachian Mining&Engineering,Inc.,Lexington,KY,USA [2]Rogers Group,Inc.,Nashville,TN,USA
出 处:《International Journal of Mining Science and Technology》2020年第1期63-67,共5页矿业科学技术学报(英文版)
摘 要:The development of a multiple level underground mine is a complex task in which geology,engineering,ground control,and unit operations are integrated into a single mine design.The components are interdependent and must function cohesively to ensure a profitable underground mining operation.To optimize reserve recovery,mine planning should begin from the lowest level and progress up.This limits any misjudgments or oversights of a given level affecting the underlying levels and ensures the ability to maximize recovery from each level.Mine planning should start with the exploration and characterization of the geologic setting.Once the reserve geology and quality is well understood,then mine planning can begin with respect to the following:(1)orientation of mine works with respect to horizontal stress;(2)access to the reserve;(3)determination of opening widths;(4)selection of back,floor horizons and pillar centers;(5)selection of development and secondary mining heights;(6)appropriate inter-burden thicknesses;and(7)examining the stability of the multiple level mine through numerical modeling.The multiple level mine design process and decisions are presented through a case history example.The theme is that there is one opportunity to"get it right"and many chances to overlook a small aspect within the design that will plague the mine throughout all levels and through the entirety of its operating life.
关 键 词:LIMESTONE Mine planning GEOLOGY MULTIPLE LEVEL Rock MECHANICS
分 类 号:P624[天文地球—地质矿产勘探] TD876.3[天文地球—地质学]
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