3Dmine平台下的三维地质建模与应用  

3D Geological Modeling and Application Under the 3Dmine Platform

作　　者：张磊[1] 詹润 许光泉[1] 孙贵 胡广青 赵锐 无 ZHANG Lei;ZHAN Run;XU Guangquan;SUN Gui;HU Guangqing;ZHAO Rui;无(School of Earth and Environment,Anhui University of Science and Technology;Chuzhou Branch of Yanzhou CNBM Construction Co.,Ltd.;Exploration and Research Institute,Anhui Bureau of Coal Geological Exploration)

机构地区：[1]安徽理工大学地球与环境学院,安徽省淮南市232001 [2]兖州中建材建设有限公司滁州分公司 [3]安徽省煤田地质局勘查研究院

出　　处：《现代矿业》2021年第7期187-192,共6页Modern Mining

基　　金：安徽省重点研究和开发计划项目(编号:1804a0802203)。

摘　　要：三维地质建模是实现矿山信息化的必要环节,对提高矿山的管理水平和经济效益具有重要意义。以滁州市某露天水泥石灰矿为研究对象,基于3Dmine软件,建立了地形与采场现状面模型、矿体与地层实体模型、品位属性块体模型,并对研究区进行了三维地质建模、储量计算和品位空间分布的研究。结果表明,利用等值线赋高程与网格估值得到的面模型能够直观地反映矿体赋存的地表与采场环境。在考虑传统人工块段法、建模操作及其他矿山条件影响因素后,依靠本次建立的块体模型所计算的可采储量可信度较高。通过品位属性三维空间模型发现,在自西南向东北方向上,矿体中CaO含量呈现由大变小的分布规律,MgO、SiO_(2)含量则呈现由小变大的分布规律,MgO、SiO_(2)与CaO含量分布呈现明显的反相关性。游离二氧化硅含量自南向北总体呈变大趋势,局部略有降低。Three-dimensional geological modeling is a necessary link to realize the informatization of mines,and it is of great significance to improve the management level and economic benefits of mines.Taking an open-pit cement lime mine in Chuzhou City as the research object,based on 3Dmine software,the terrain and stope current surface model,ore body and stratum solid model,and grade attribute block model are established.In addition,three-dimensional geological modeling,reserves calculation and spatial distribution of grade were studied in the study area.The results show that the surface model obtained by using contours to assign elevation and grid estimation can intuitively reflect the surface and stope environment where the ore body occurs.After considering the traditional artificial block method,modeling operations and other factors affecting mine conditions,the recoverable reserves calculated by the block model established this time are more reliable.Through the three-dimensional space model of grade attribute,it is found that from the southwest to the northeast,the content of CaO in the ore body presents a distribution law from large to small,while the content of MgO and SiO_(2)presents a distribution law from small to large.The content distribution of MgO,SiO_(2)and CaO shows an obvious inverse correlation.The content of free silica tends to increase from south to north on the whole,and slightly decreases locally.

关 键 词：三维地质建模 3Dmine 软件 储量计算 品位属性 露天石灰矿 

分 类 号：P628[天文地球—地质矿产勘探]