摘要
利用实验测定的散体流动参数和"三分段回采"原则,分析计算小汪沟铁矿无底柱分段崩落法采场结构参数的合理值。借助图形分析法确定崩矿步距与下盘岩石开掘高度的初始值,并给出在生产中优化崩矿步距与下盘岩石开掘高度的技术与方法。
Based on the flow parameters of loose ores measured by experiment and the principle of “Backstoping in Three Sublevels”, the reasonable value of nonpillar sublevel caving method stope structure parameters are analyzed and calculated for Xiaowanggou iron mine. Meanwhile, the initial value of independent advance of ore breaking and the height of footwall rock excavated are determined by means of graphic analysis method and the optimization method for them in production is also put forward.
出处
《矿业工程》
CAS
2014年第4期12-14,共3页
Mining Engineering
关键词
无底柱分段崩落法
采场结构参数
下盘岩石开掘高度
nonpillar sublevel caving method
stope structure parameters
height of footwall rock excavated
