华北理工大学学报(自然科学版)

针对传统矿体三维建模技术过程中存在需要消耗大量时间进行人机交互，且无法支持矿体模型的动态更新等问题，提出了一种基于近邻度分析的矿体模型自动化构建方法。借鉴隐式建模的思路，引入邻近度分析思想，直接对原始钻孔数据进行空间插值处理，利用邻近度分析方法以矿体边界品位控制参数为基准筛选矿体模型边界数据，使用Delaunay三角剖分成功构建自动化矿体模型，并且可以通过修改控制参数实现矿体模型的动态更新。实验结果表明基于邻近度分析思想的矿体三维自动建模方法可自动由原始钻孔数据直接生成矿体模型，无需大量人机交互过程，且支持矿体模型的自动更新，与传统显式模型效果对比表明模型效果更饱满、完整，符合地质特征，为国内智能矿山技术更新与矿体三维建模软件开发提供了新思路。

In order to solve the problems of human-computer interaction in the process of traditional ore body 3D modeling technology, which cannot support the dynamic update of ore body model, an automatic construction method of ore body model based on proximity analysis was proposed. Drawing on the idea of implicit modeling, the idea of proximity analysis was introduced, the spatial interpolation of the original borehole data was directly carried out, the proximity analysis method was used to screen the boundary data of the ore body model based on the ore body boundary grade control parameters, and the automatic ore body model was successfully constructed by Delaunay triangulation, and the dynamic update of the ore body model could be realized by modifying the control parameters. The experimental results show that the three-dimensional automatic modeling method of ore body based on the idea of proximity analysis can automatically generate the ore body model directly from the original borehole data, without a large number of human-computer interaction processes, and supports the automatic update of the ore body model.