分形理论在某钼矿特高品位识别与处理中的应用  

Identification and treatment of extra high grade value based on fractal theory in a molybdenum ore

作　　者：陈建均[1] 胡乃联[1] 李国清[1] 

机构地区：[1]北京科技大学金属矿山高效开采与安全教育部重点实验室,北京100083

出　　处：《中国矿业》2015年第5期133-136,共4页China Mining Magazine

基　　金：国家自然科学基金项目资助(编号:51104010);中央高校基本科研业务费专项资金资助(编号:FRF-SD-12-001A)

摘　　要：针对参数选取缺乏合理性、平均品位下降等问题,提出了一种基于分形理论的特高品位识别与处理方法。该方法首先采用含量-总量法确定特高品位下限值,然后运用平均值替代法处理特高品位。将该方法应用于某露天钼矿的特高品位识别与处理,并通过克里金插值法进行品位估算。结果表明:该方法识别与处理特高品位后的插值效果明显优于3σ法和分布函数法,且能够较好地反映该钼矿的原始品位分布规律,验证了该方法的可行性和有效性。An identification and treatment method of extra high grade value based on the fractal theory was proposed ,aiming at the problem of an unreasonable parameter selection and the average grade value declines .The method adopts content-sum method to determine the lower limit of extra high value ,and then use the average value to replace it .The method was applied to the identification and treatment of extra high grade value in an open molybdenum ore ,and grade estimation by Kriging interpolation .The results suggest that the effect of interpolation of the method is superior to the 3σmethod and distribution function method , and can better reflect the original distribution of the molybdenum ore grade .It demonstrates that the method is feasible and effective .

关 键 词：特高品位 分形理论 含量-总量法 克里金插值 

分 类 号：TD166[矿业工程—矿山地质测量]