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黄金科学技术 ›› 2019, Vol. 27 ›› Issue (4): 573-580.doi: 10.11872/j.issn.1005-2518.2019.04.573

• 采选技术与矿山管理 • 上一篇    下一篇

露天铀矿山爆区品位估算方法优选研究

谭期仁1(),董文明2,毕林3(),蔡兴琪2,苗小虎2   

  1. 1. 长沙迪迈数码科技股份有限公司,湖南 长沙 410083
    2. 中广核铀业发展有限公司,北京 100083
    3. 中南大学资源与安全工程学院,湖南 长沙 410083
  • 收稿日期:2019-06-29 修回日期:2019-07-20 出版日期:2019-08-31 发布日期:2019-08-19
  • 通讯作者: 毕林 E-mail:kmhtqr@sina.cn;mr.bilin@163.com
  • 作者简介:谭期仁(1990-),男,湖南邵阳人,硕士研究生,从事数字矿山建模及规划方面的研究工作。kmhtqr@sina.cn
  • 基金资助:
    距离场的复杂金属矿体三维建模技术研究”(41572317)

Study on Optimization of Grade Estimation Method of Muckpile in Open-pit Uranium Mine

Qiren TAN1(),Wenming DONG2,Lin BI3(),Xingqi CAI2,Xiaohu MIAO2   

  1. 1. Changsha Digital Mine Co. ,Ltd. ,Changsha 410083,Hunan,China
    2. CGNPC Uranium Resources Co. ,Ltd. ,Beijing 100083,China
    3. School of Resources and Safety Engineering,Central South University,Changsha 410083,Hunan,China
  • Received:2019-06-29 Revised:2019-07-20 Online:2019-08-31 Published:2019-08-19
  • Contact: Lin BI E-mail:kmhtqr@sina.cn;mr.bilin@163.com

摘要:

爆区品位估算是露天铀矿山极其重要的日常性工作。为快速、准确地得到品位估算结果,从估算方法选取展开研究,介绍了最近距离法、距离幂次反比法和普通克里格法等品位估算方法的基本原理。以国外某铀矿为例,采用上述估算方法和三维矿业软件开展了爆区品位估算试验,并以普通克里格法的估算结果为标准,对最近距离法和距离幂次反比法的估算结果进行了偏差、统计和图形分析。结果表明:在矿石量和平均品位方面,与普通克里格法所得的估算结果相比,距离幂次反比法的偏差较小,而最近距离法的偏差较大;在估值准确性方面,距离幂次反比法基本接近普通克里格法,且估值精度满足矿山实际生产的要求,可用于爆区估值,而最近距离法的估值精度相对较差,不能用于爆区估值。距离幂次反比法作为爆区品位估算方法,操作过程简单且参数相对确定,在满足估值精度要求的同时可节约建模时间。该研究成果可为类似露天铀矿山进行爆区品位估算提供一定的指导。

关键词: 铀矿, 露天开采, 爆区, 估算方法, 估值验证, 三维矿业软件

Abstract:

In recent years,due to the impact of Fukushima nuclear leakage accident,the price of natural uranium has continued to decline,and more and more uranium mines have gradually attached importance to the utilization of resources.Muckpile is the smallest mining unit in open-pit mine.Finding out the grade distribution in muckpile is very important for blasting charge,network connection design,ore block design and shoveling operation.At the same time,it is very important to reduce dilution and loss and improve resource utilization. Grade estimation of muckpile is an extremely important routine work in open-pit uranium mines.In order to get the grade estimation results quickly and accurately,the basic principles of the nearest neighbor method,the inverse distance weighted method and the ordinary Kriging method are introduced.Taking a foreign uranium mine as an example,the bench height of the open-pit uranium mine is 7.5 m.The bench is divided into several muckpiles by single bench mining.The blasting hole grid is about 6 m×6 m.Gamma logging is used to obtain the grade information of each blasting hole in the ore-bearing muckpile.The logging interval is 0.1 m,that is,the original sample length is 0.1 m,and Gamma logging is not carried out in the pure waste muckpile.Using three-dimensional mining software,four muckspiles were selected to carry out grade estimation experiments.Based on the estimation results of the ordinary Kriging method,the deviation,statistics and graphical analysis of the estimation results of the nearest neighbor method and the inverse distance weighted method were carried out successively.The results show that the deviation of the inverse distance weighted method is generally smaller than that of the ordinary Kriging method in ore quantity and average grade,the maximum deviation of ore quantity is only 6.19%,while that of the nearest neighbor method is generally larger,and the maximum deviation of ore quantity is 27.6%.The accuracy of the nearest neighbor method is close to that of the ordinary Kriging method,and the accuracy of estimation meets the requirements of actual production of mines.It can be used to estimate the grade of muckpile.However,the nearest neighbor method has a relatively poor estimation accuracy and can not be used to estimate the grade of muckpile.The inverse distance weighted method,as a grade estimation method of muckpile,has a simple operation process and relatively definite parameters,which can save a lot of time while satisfying the requirement of estimation accuracy.The research results can provide guidance and reference for similar open-pit uranium mines to estimate the grade of muckpile.

Key words: uranium mine, open-pit mining, muckpile, estimation method, valuation validation, 3D mining software

中图分类号: 

  • TD804

图1

炮孔数据库"

表1

估算参数"

参数 普通克里格法 距离幂次反比法 最近距离法
单元块尺寸/m 3.125×3.125×1.500 3.125×3.125×1.500 3.125×3.125×1.500
组合样长/m 1 1 1
搜索半径/m - 8×8×4 8×8×4
方位角/(°) 0 0 0
倾角/(°) 0 0 0
倾伏角/(°) 0 0 0
幂次 - 2 -
最少样品数/个 3 3 -
最多样品数/个 15 15 -

表2

理论变异函数参数值"

爆区编号 块金值 拱高 变程
爆区1 0.561 0.941 23.5
爆区2 0.670 1.163 27.0
爆区3 0.743 0.955 26.2
爆区4 0.780 0.688 12.6

表3

理论变异函数交叉验证结果"

爆区编号 误差均值 误差方差 克里格方差 误差方差/克里格方差
爆区1 0.009 0.752 0.770 0.98
爆区2 0.829 0.912 0.883 1.03
爆区3 0.156 0.921 0.923 0.99
爆区4 0.670 1.033 1.052 0.98

表4

各爆区总矿量和平均品位汇总"

爆区编号 最近距离法 普通克里格法 距离幂次反比法
矿量/t 品位/(×10-6 矿量/t 品位/(×10-6 矿量/t 品位/(×10-6
爆区1 91 311 256.4 104 556 254.6 104 214 253.9
爆区2 58 179 164.1 80 363 164.7 75 388 161.9
爆区3 42 093 142.6 52 486 145.7 51 521 145.0
爆区4 67 588 115.2 74 897 119.2 73 666 118.9

图2

估算结果偏差分析"

图3

各估值方法结果QQ图对比分析"

图4

块段模型品位分布平面图"

1 徐浩,任忠宝,刘鑫扬 .全球铀矿生产成本及供需形势展望[J].矿业研究与开发,2019,39(10):1-5.
Xu Hao , Ren Zhongbao , Liu Xinyang .Global uranium production cost and prospect of supply and demand situation[J].Mining Research and Development,2019,39(10):1-5.
2 刘悦,丛卫克 .世界铀资源、生产及需求概况[J].世界核地质科学,2017,34(4):200-206.
Liu Yue , Cong Weike .Overview on world uranium resources,production and demand[J].World Nuclear Geoscience,2017,34(4):200-206.
3 李强,王建平,徐千琰 .世界铀资源概况及供需形势展望[J].中国矿业,2013,22(11):13-18.
Li Qiang , Wang Jianping , Xu Qianyan .General situation and prospect on supply and demand trend of the world uranium resources[J].China Mining Magazine,2013,22 (11):13-18.
4 刘占宁,宋宇辰,孟海东,等 .块体尺寸和估值方法对矿石品位估值的影响[J].矿业研究与开发,2018,38(6):89-93.
Liu Zhanning , Song Yuchen , Meng Haidong ,et al . The influences of block size and estimation methods on the valuation of ore grade[J].Mining Research and Development,2018,38(6):89-93.
5 谢伟 .三维软件常用品位估值方法介绍[J].科技视界,2016(10):225,240.
Xie Wei .Introduction to the method of estimating the common potential of three-dimensional software[J].Science and Technology Vision,2016(10):225,240.
6 柯丽华,何扬扬,张光权,等 .乌龙泉矿距离幂次反比法品位估值参数优化[J].金属矿山,2018,47(7):147-151.
Ke Lihua , He Yangyang , Zhang Guangquan ,et al .Optimization of the grade estimation parameters of inverse distance weighting method of Wulongquan mine[J].Metal Mine,2018,47(7):147-151.
7 刘占宁,宋宇辰,孟海东,等 .样本点与距离权重对距离幂次反比法的影响[J].矿业研究与开发,2018,38(9):94-99.
Liu Zhanning , Song Yuchen , Meng Haidong ,et al .The influence of sample point and distance weight on inverse distance weighting[J].Mining Research and Development,2018,38(9):94-99.
8 赵华杰 .基于地质统计学的采空区储量估算[J].西安科技大学学报,2019,39(3):492-497.
Zhao Huajie .Reserves estimation of goaf based on geostatistic[J].Journal of Xi’an University of Science and Technology,2019,39(3):492-497.
9 田维 .基于距离幂反比法的新疆黄土坡铜锌矿品位估算应用研究[J].中国矿山工程,2018,47(5):14-18.
Tian Wei .Application study of ore grade estimation based on distance power inverse method in Xinjiang Huangtupo copper and zinc mine[J]. China Mine Engineering,2018,47(5):14-18.
10 荆永滨,孙光中,毕林 .基于空间结构性的距离幂次反比法品位估值研究[J].地质科技情报,2018,37(2):215-220.
Jing Yongbin , Sun Guangzhong , Bi Lin .IDW estimation for ore grade based on spatial structure of data[J].Geological Science and Technology Information,2018,37(2):215-220.
11 崔年生 .泰森多边形法在露天矿爆区矿岩划分中的应用[J].采矿技术,2018,18(2):70-73.
Cui Niansheng .Application of Thiessen polygon method to the division of ore and rock in open-pit mine[J].Mining Technology,2018,18(2):70-73.
12 周坤,郑立明 .最近距离法在贵金属矿体圈定中的应用——以南非某层状铂矿为例[J].黄金科学技术,2013,21(3):55-58.
Zhou Kun , Zheng Liming .Application of the nearest neighbor method in delineation of noble metal ore:Taking a layered platinum ore in South Africa as an example[J]. Gold Science and Technology,2013,21(3):55-58.
13 邓勇,庄世勇,洪求友,等 .基于DIMINE软件的某铁矿地质建模及储量估算[J].地质学刊,2018,42(2):305-311.
Deng Yong , Zhuang Shiyong , Hong Qiuyou ,et al .Geological modeling and reserve estimation of an iron ore based on DIMINE software[J]. Journal of Geology,2018,42(2):305-311.
14 吴健飞,叶义成,王其虎,等 .某多层复杂矿床开采优化的三维地质建模[J].金属矿山,2012,41(9):124-128.
Wu Jianfei , Ye Yicheng , Wang Qihu ,et al .Study on 3D geological modeling for mining optimization of a multilayer complex ore deposit[J].Metal Mine,2012,41(9):124-128.
15 刘佶林,杨忠,王孝东,等 .普通克里格法在铜曼矿区储量估算中的应用[J].有色金属(矿山部分),2019,71(1):48-53.
Liu Youlin , Yang Zhong , Wang Xiaodong ,et al .Application of ordinary Kriging in the reserves estimation of Tongman Mine[J].Nonferrous Metals(Mining Section),2019,71(1):48-53.
16 邓丹 .地质统计学在矿床品位估算中的应用研究[J].世界有色金属,2018(13):297-298.
Deng Dan .Application of geostatistics in ore grade estimation[J].World Nonferrous Metals,2018(13):297-298.
17 杨程 . 基于地质统计学的金堆城钼矿矿床品位分布研究[D].西安建筑科技大学,2010.
Yang Cheng .The Research of Jinduicheng Molybdenum Ores Disciplinarian Based on Geostatistics[D]. Xi’an:Xi’an University of Architectural Science and Technology,2010.
18 王瑞,李亮,周大伟,等 .地质统计学在稀土矿储量计算研究应用[J].稀土,2019,40(2):35-41.
Wang Rui , Li Liang , Zhou Dawei ,et al . Calculation of rare earth ore reserves by geostatistics[J]. Chinese Rare Earths,2019,40 (2):35-41.
19 图雅,巴图德力格尔,阿拉腾图雅,等 .人口分布空间化方法对比分析——以内蒙古东部区为例[J].阴山学刊(自然科学),2012,26(3):45-49.
Tuya,Batudleiger,Alatentoya,et al . A comparative analysis of space to method of population distribution for example eastern region of Inner Mongolia[J]. Yinshan Academic Journal(Natural Science Edition),2012,26(3):45-49.
20 吴炳生 .福建某铜矿床三维地质建模及资源量估算[D].北京:中国地质大学(北京),2014.
Wu Bingsheng .3D Geological Modeling and Resource Estimates of a Copper Deposit,Fujian[D].Beijing:China University of Geosciences(Beijing),2014.
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