地质统计学储量估算中块尺寸的合理选择

doi:10.13278/j.cnki.jjuese.201701110

吉林大学学报(地球科学版) ›› 2017, Vol. 47 ›› Issue (1): 106-112.doi: 10.13278/j.cnki.jjuese.201701110

地质统计学储量估算中块尺寸的合理选择

张延凯^1,2, 李克庆^1,2, 杨诗海³, 李迪⁴, 宫明山⁵

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;
2. 北京科技大学土木与资源工程学院, 北京 100083;
3. 山东黄金(北京)产业投资有限公司矿业基金部, 北京 100029;
4. 长春黄金设计院, 长春 130000;
5. 中铁资源集团有限公司金属事业部, 北京 100039

收稿日期:2016-03-18 出版日期:2017-01-26 发布日期:2017-01-26
作者简介:张延凯(1979),男,高级工程师,主要从事数字矿山、矿业系统工程方面研究,E-mail:ustb_zyk@126.com
基金资助:
“十二五”863计划项目（2012AA062200）

Discussion on the Block Size Setting During Geostatistics Reserves Estimation

Zhang Yankai^1,2, Li Keqing^1,2, Yang Shihai³, Li Di⁴, Gong Mingshan⁵

1. State Key Laboratory of High-Efficient Mining and Safety of Metal Mines/University of Science and Technology Beijing, Ministry of Education, Beijing 100083, China;
2. School of Civil and Resource Engineering, University of Science and Technology Beijing, Beijing 100083, China;
3. Mining Funds Department of Shandong Gold(Beijing) Industrial Investment Co., Ltd, Beijing 100029, China;
4. Changchun Gold Design Institute, Changchun 130000, China;
5. Metal Project Department, China Railway Resources Group Co. Ltd, Beijing 100039, China

Received:2016-03-18 Online:2017-01-26 Published:2017-01-26
Supported by:
Supported byNational High-Tech Research & Development Program(2012AA062200)

摘要/Abstract

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。

关键词: 块尺寸, 估计方差, 品位-吨位曲线, 选别开采单元, 地质统计学, 储量估算

Abstract: Resources and reserves estimation play an important role in different stages such as mineral exploration, mining design, production, management and so on. Geostatistics method has many advantages over traditional method in reserves estimation and is becoming more and more widely used. Reasonable setting of block size has a great influence on reserve estimation results, however, in practice, block size is usually defined on the basis of personal experience or subjective judgment, which is a lack of scientific support. In this study, after summarizing predecessors' work and experience, block size selection for reserves estimation was studied for the stages of exploration and production respectively. According to the characteristics of different stages, the relationships between block size and grade, reserves, estimation variance, selective mining unit were discussed for each stage and advices on reasonable block size selection were provided. Moreover, a large molybdenum deposit was used as engineering background to undertake in-depth analysis and experiments. It is concluded that block size selection not only affects grade variation and ore volume calculation but also the economic and technical evaluation of mining. Block size of 15 m×15 m×15 m is recommended for the reserve estimation of this deposit.

Key words: block size, estimation variance, grade-ton curve, selective mining unit, geostatistics, reserves estimation

中图分类号:

P624.7

张延凯, 李克庆, 杨诗海, 李迪, 宫明山. 地质统计学储量估算中块尺寸的合理选择[J]. 吉林大学学报(地球科学版), 2017, 47(1): 106-112.

Zhang Yankai, Li Keqing, Yang Shihai, Li Di, Gong Mingshan. Discussion on the Block Size Setting During Geostatistics Reserves Estimation[J]. Journal of Jilin University(Earth Science Edition), 2017, 47(1): 106-112.

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地质统计学储量估算中块尺寸的合理选择

Discussion on the Block Size Setting During Geostatistics Reserves Estimation

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