基于ArcGIS的三维地质模型自动构建方法  

Automatic Construction Method of 3D Geological Model Based on ArcGIS

作　　者：李鸿卫 闫文超 LI Hong-wei;YAN Wen-chao(Southwest Nonferrous Kunming Survey and Design(Institute)Co.,Ltd.,Kunming 650000,China)

机构地区：[1]西南有色昆明勘测设计(院)股份有限公司,云南昆明650000

出　　处：《世界有色金属》2024年第7期25-27,共3页World Nonferrous Metals

摘　　要：为提高三维地质模型精度,引进ArcGIS技术,设计一种针对三维地质模型的自动化构建方法。以ArcGIS为基础,利用ArcGIS Engine系统,结合C#开发环境,提取三维地质空间点;利用ArcGIS中的对象模型,构建非直接GIS数据模型;为了更加贴近真实的三维模型,利用ArcGIS类库中的IGeometryMaterial,设计属性数据聚合与地质结构纹理映射;考虑属性数据在空间上的分布变化,设计地质数据插值处理;引进变差函数,计算处理后数据的偏差值,将数据录入ArcGIS平台,自动生成三维地层模型。对比实验结果证明:该方法可以提高三维地质模型的精度,使三维地质模型剖面随机点与地质实景的匹配度处于一个较高水平。In order to improve the accuracy of 3D geological models,ArcGIS technology is introduced to design an automated construction method for 3D geological models.Based on ArcGIS and utilizing the ArcGIS Engine system,combined with the C#development environment,extract three-dimensional geological spatial points;Using the object model in ArcGIS to construct an indirect GIS data model;In order to be closer to the real 3D model,IGeometryMaterial in ArcGIS class library is used to design attribute data aggregation and geological structure texture mapping;Design geological data interpolation processing considering the spatial distribution changes of attribute data;Introduce a variation function,calculate the deviation value of the processed data,input the data into the ArcGIS platform,and automatically generate a three-dimensional stratigraphic model.The comparative experimental results demonstrate that this method can improve the accuracy of the 3D geological model and maintain a high level of matching between the random points in the 3D geological model profile and the geological reality.

关 键 词：ARCGIS 属性数据 纹理映射 构建方法 自动 三维地质模型 

分 类 号：TD163[矿业工程—矿山地质测量]