摘要
矿政管理、矿山日常生产对三维建模在资源储量管理方面的应用需求日趋提升。主流的剖面法建模精度受限于已有地质资料精度,本文选取胶东地区上庄金矿①-1矿体作为研究对象,基于国产3DMine软件,以钻孔建模为主、剖面建模为辅的方法构建了三维实体模型,采用距离幂次反比法对块体模型进行赋值,系统介绍了“数据处理—3D实体模型构建—信息提取—块体模型赋值”的建模全流程,该工作方法能够有效提高建模精度。矿体资源储量估算结果与传统的地质块段法估算结果相比,误差3.18%,同时不同的约束条件和块体属性筛选功能,能够快速便捷地实现矿体资源储量分割、实时更新和矿化空间分布规律研究,满足资源储量管理需求,为矿政管理、矿山日常生产对三维建模在资源储量管理方面的应用提供了支撑。
The demand of 3D modeling application in mining right administration and mine daily production in resource reserve management is increasing day by day. Mainstream profiling modeling accuracy is limited by the existing geological data accuracy. Based on domestic 3 D Mine software, selecting ①-1 ore body of Shangzhuang gold deposit in Jiaodong Peninsula as study object, using a 3 D entity model with drilling modeling as the main method and profile modeling as the auxiliary method, evaluating the block model with distance power inverse ratio methoda whole modeling process of data processing-3D entity model construction-information extraction-block model assignment has been introduced systematically. This process can effectively improve 3 D modeling accuracy. Comparing with traditional geological block method, the estimated result of ore body reserves has an error of 3.18%. Meanwhile, combining with different constraint conditions and block property screening function, resource reserves segmentation, real-time update and mineralization spatial distribution law research can be realized quickly and conveniently, meet the resource reserve management requirements, provide support for the application of 3 D modeling in resource reserve management of mining right administration and mine daily production.
作者
刘彦奎
王欣然
李建
丛超
李宁
LIU Yankui;WANG Xinran;LI Jian;CONG Chao;LI Ning(No.1 Exploration Institute of Geology and Mineral Resources, Shandong Ji'nan 250109, China;Shandong Geophysical and Geochemical Exploration Institute, Shandong Technology Research Center of Geological Exploration Engineering, Shandong Engineering Laboratory of Soil Geochemistry, Shandong Ji'nan 250013, China;Zhaojin Mining Limited Corporation, Shandong Yantai 266009, China)
出处
《山东国土资源》
2020年第12期53-59,共7页
Shandong Land and Resources
关键词
三维地质建模
钻孔建模
距离幂次反比法
资源储量管理
胶东金矿
Three dimensional geological modeling
drilling modeling
distance power inverse ratio method
resource reserve management
Jiaodong gold deposit
