基于3DMine软件的复杂矿体三维建模及储量估算  

Three-dimensional modeling and reserve estimation of complex ore-body based on 3DMine

作　　者：邵亚建 饶运章[1,2] 何少博 

机构地区：[1]江西理工大学资源与环境工程学院,江西赣州341000 [2]江西省矿业工程重点实验室,江西赣州341000 [3]招金矿业股份有限公司夏甸金矿,山东招远265400

出　　处：《有色金属科学与工程》2016年第4期98-102,共5页Nonferrous Metals Science and Engineering

基　　金：国家高技术研究发展计划(863计划)资助项目(2012AA061901);国家自然科学基金资助项目(51364010);2011年度江西省安全生产重大课题(JXAJ2011002)

摘　　要：数字矿山的核心任务之一是构建集成化的矿山真三维模型,其难点则是建立精确、完整的三维地质模型,即矿体建模和储量估算.为快捷地建立三维模型并能在其上进行开采设计及查明矿床资源储量,提出了基于3DMine软件的三维矿体建模及储量估算方法.首先依据地质资料和钻孔数据建立了地质数据库和三维地表/矿体模型;然后将矿体模型分解离散为矿块组合模型,采用距离幂次反比法估算矿山资源储量.结果表明:软件可便捷地构建直观反映矿体形状、大小及矿体与储量块体空间相关性、连续性的真三维模型,并且能够为矿山设计与规划提供操作平台;与传统地质块段法相比,对样品点进行无偏估计的距离幂次反比法在软件上易于实现且结果较为可靠.One of the core tasks of digital mine is to build an integrated real three-dimensional model of the mine. The difficulty of the task is to set up a precise and complete three-dimensional geological model, namely underground ore-body modeling and reserve estimation. In order to establish three-dimensional model quickly, design mining and find out deposit reserves based on the model, a three-dimensional ore-body modeling and reserve estimation approach based on 3DMine software was proposed. Firstly, geological database and three-di- mensional surface/ore-body model were established according to the existing geological information and drilling data. Secondly, the ore-body model was divided into the discrete block combination model, and the inverse distance weighted method was used to estimate mine resources reserves. The results show that the software can easily build real three-dimensional model, which will reflect the ore body shape , size and the spatial correla- tion of ore body and reserves blocks intuitively. It can also provide a platform for the mine designing and plan- ning. Besides, compared with traditional geological block method, the inverse distance weighted method based on an unbiased estimate of the sample points is easier to achieve in software with more reliable result.

关 键 词：数字矿山 3DMine 矿体模型 矿块组合模型 距离幂次反比法 储量估算 

分 类 号：TD672[矿业工程—矿山机电] P624.7[天文地球—地质矿产勘探]