地质统计学储量估算中块尺寸的合理选择

发布时间：2018-04-15 05:30

本文选题：块尺寸 + 估计方差　；参考：《吉林大学学报(地球科学版)》2017年01期

【摘要】：在矿产勘查、矿山设计、生产及管理等各阶段都需要进行资源储量估算的工作。地质统计学方法相对于传统储量估算方法具有明显优势,在资源储量估算中获得了广泛的应用。估值过程中单元块尺寸的合理选择对储量估算结果至关重要,然而,在以往实践中块尺寸通常根据经验或主观判断进行选择,缺乏科学依据。本文在总结前人工作及地质统计学资源储量估算经验的基础上,将块尺寸的选取问题明确地划分为勘探阶段和生产阶段。针对不同阶段的特点,重点讨论了块尺寸与品位、储量、估计精度、选别开采单元的关系,为块尺寸的合理选择提供参考。并以某特大型钼矿为工程背景,进行了深度解析及数据实验,得出了块尺寸不仅影响资源品位分布、矿石量而且影响开采技术经济指标的结论,综合考虑估计精度和选别开采单元,推荐该矿床选择15m×15m×15m的单元块尺寸进行储量估算。
[Abstract]:Resource reserve estimation is necessary in mineral exploration, mine design, production and management.The geostatistics method has obvious advantages over the traditional reserve estimation method and has been widely used in resource reserve estimation.The reasonable selection of unit block size is very important to the result of reserve estimation. However, in previous practice, block size is usually selected according to experience or subjective judgment, which is lack of scientific basis.On the basis of summing up the previous work and the experience of estimating the reserves of geostatistics resources, the selection of block size is clearly divided into the exploration stage and the production stage.According to the characteristics of different stages, the relationship between block size and grade, reserves, estimation accuracy, and selection of mining units is discussed, which provides a reference for the reasonable selection of block size.Taking an extra large molybdenum mine as the engineering background, the depth analysis and data experiment are carried out, and the conclusion is drawn that the block size not only affects the distribution of resource grade, ore quantity but also the technical and economic indexes of mining.Considering the accuracy of estimation and the selection of mining units, it is recommended that the unit size of 15m 脳 15m 脳 15m should be chosen to estimate the reserves of the deposit.
【作者单位】：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;北京科技大学土木与资源工程学院;山东黄金(北京)产业投资有限公司矿业基金部;长春黄金设计院;中铁资源集团有限公司金属事业部;
【基金】：“十二五”863计划项目(2012AA062200)~~
【分类号】：P624.7

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