基于Micromine软件的砂岩型铀矿某采场三维模型构建及资源量估算参数确定  

3D model construction and resource estimation parameter determination for a sandstone type uranium mine stope based on Micromine software

作　　者：刘晓奎 孙远强 张渤[1] 金鑫裕 呼日乐 李男 庄治旭 刘天印 LIU Xiaokui;SUN Yuanqiang;ZHANG Bo;JIN Xinyu;HU Rile;LI Nan;ZHUANG Zhixu;LIU Tianyin(Tongliao Uranium Co.,Ltd.,CNNC,Tongliao 028000,China;National Key Laboratory of Uranium Resources Exploration-Mining and Nuclear Remote Sensing,Beijing 100029,China;Beijing Research Institute of Uranium Geology,Beijing 100029,China;CNNC Key Laboratory of Uranium Resources Exploration and Evaluation Technology,Beijing 100029,China)

机构地区：[1]中核通辽铀业有限责任公司,内蒙古通辽028000 [2]铀资源探采与核遥感全国重点实验室,北京100029 [3]核工业北京地质研究院,北京100029 [4]中核集团铀资源勘查与评价技术重点实验室,北京100029

出　　处：《世界核地质科学》2024年第6期1133-1140,1155,共9页World Nuclear Geoscience

摘　　要：为精细刻画砂岩型铀矿某采场的矿体三维形态,对铀资源量估算参数进行确定,对采场铀矿体开展三维模型构建工作,并利用地质统计学法对铀资源量估算参数进行确定。针对砂岩型铀矿某采场钻孔数据,利用Micromine软件通过数据统计分析、校验修正等预处理操作,构建钻孔数据库。基于砂岩型铀矿勘查规范,经过样长组合、特异值处理和平米铀量计算,圈定采场可地浸砂岩型铀矿体三维模型,实现矿体的三维可视化。通过相关参数设置,建立变异函数模型,利用普通克里格法开展铀品位插值,估算铀矿体资源量,可清晰展示矿体形态、规模、品位和厚度等参数在三维空间的变化特征,弥补传统资源量估算方法的不足,为数字矿山建井提供数据支撑。In order to accurately depict the 3D shape of ore body in a stope of sandstone type uranium mine and estimate the amount of resources,a 3D model of uranium body in the stope was constructed,and the amount of uranium resources was estimated by geostatistics method.Based on the drilling data of a sandstone-type uranium ore,Micromine software was used to build a drilling database by data statistical analysis,verification and correction.According to the specifications for sandstone type uranium deposits,a threedimensional model of an in-situ leachable uranium deposit in a certain mining site was delineated with sample length combination,specific value processing,and square meter uranium quantity calculation,and presented the orebody with three-dimensional visualization.By setting relevant parameters,a variation function model was established,and ordinary Kriging method was used to interpolate uranium grade and estimate uranium resources.This study can clearly display the variation characteristics of ore body morphology,scale,grade,thickness and other parameters in three-dimensional space,which overcomes the shortcomings of traditional resource estimation methods and provides data support for digital mining well construction.

关 键 词：可地浸砂岩型铀矿 三维矿体建模 地质统计学法 资源量估算 Micromine软件 

分 类 号：P631[天文地球—地质矿产勘探]