基于投影图的矿体三维可视化模型动态构建及资源储量评价

3D Orebody Dynamic Modeling and Mineral Resources Visualized Evaluating Based on Projection Map

针对钻孔、剖面、离散点等传统三维矿体自动构模方式存在的构模信息量不足,无法快速、有效地实现矿体三维可视化模型自动构建及资源储量分析等问题,以矿体投影图编制工作流程为主线,以地矿点源数据库为基础,综合运用GIS、图库一体化、三维可视化等技术,研究并实现了一种新的基于二维平面投影图的矿体三维可视化模型动态构建及资源储量可视化分析方法,为矿体资源储量估算各要素的三维可视化动态分析、表达及评价提供了一种新的有效途径.经Quanty Mine数字矿山软件功能实现及实际矿山应用对比分析表明,该方法可实现矿体投影图编制与矿体三维可视化模型动态构建的一体化,资源储量三维可视化模型分析结果与传统二维平面方式估算结果相差-1.44%—2.81%,各类别储量基本接近,模型可靠性较好.

For lack of adequate modeling information,such as topological relations and geological experts＇ knowledge,3D orebody automatic modeling and mineral resources visualized evaluating can not be realized fast and effectively by traditional boreholes,profile maps and discrete points. Taking orebody projection mapping as the main line and geological point-resource database as the basic data platform,3D orebody automatic modeling and 3D mineral resources visualized analyzing based on orebody projection maps were realized by using integrated technologies（ GIS,3D visualization,map-database integrating,etc）,which provides a new effective way for 3D mineral resources dynamic analyzing and visualized expressing. The related functions which were developed in digital mine software： Quanty Mine,by this method have been used in some mines,which shows that this method can quickly realize 2D orebody projection mapping and 3D orebody modeling. Compared with conventional 2D geological planar maps,mineral resources estimation results of 3D orebody models ranged from-1. 44% to 2. 81%,which agreed with the actual mineral reserves of the mine.