基于地质特征驱动的三维地质建模技术

1.南宁市勘测设计院集团有限公司,广西南宁530028;2.广西交通设计集团有限公司,广西南宁530029;3.广西交通职业技术学院土木建筑工程学院,广西南宁530023

地质工程;三维地质建模;几何模型;属性模型;拓扑关系;地质特征驱动

Geological feature driven 3D geological modeling
XU Guo1,2,WANG Changhai3,and ZHOU Xiaoqin4

1.Nanning Exploration&2.Survey Design Institute Group Co. Ltd., Nanning 530028, Guangxi Zhuang Autonomous Region, P. R. China;3.Guangxi Communications Design Group Co. Ltd., Nanning 530029, Guangxi Zhuang Autonomous Region, P. R. China;4.School of Civil and Architecture Engineering, Guangxi Vocational and Technical College of Communications, Nanning 530023, Guangxi Zhuang Autonomous Region, P. R. China

geological engineering; 3D geology modeling; geometric model; attribute model; topological relationship;geological feature driven

DOI: 10.3724/SP.J.1249.2022.04417

备注

三维地质建模时,由于几何数据和属性数据的特征不同,一般难以有效融合.为实现地质特征的融合,提出一种基于地质特征驱动的三维地质建模技术.利用三维空间数据建立几何结构模型,解决基于地质特征的几何映射与拓扑关联等关键技术,建立各种地质特征的属性数据与几何模型图形元素之间的拓扑关系,实现属性数据与几何数据的有效约束,最终构建形成满足拓扑关系唯一的地质特征驱动的三维地质模型.使用位于云贵高原向广西盆地过渡的斜坡地带的实际工程数据进行实验验证,结果表明,该技术解决了几何数据与属性数据的有效融合,为地质综合分析与工程应用提供了综合性的三维模型.
In 3D geological modeling, it is generally difficult to effectively integrate geometric data and attribute data due to their different characteristics. In order to realize the integration of geological features, we propose a 3D geological modeling technology driven by geological features. We construct the geometric structure model based on 3D spatial data. By solving the geometric mapping and topological correlation of geological features, we establish the topological relationship between attribute data of various geological features and graphic elements of geometric model, and realize the effective constraints of attribute data and geometric data . Finally, we obtain a 3D geological model driven by geological features satisfying the unique topological relationship. The experimental verification is carried out through the actual engineering data located in the slope zone between Yunnan Guizhou Plateau and Guangxi basin. This technology solves the effective fusion of geometric data and attribute data, provides a comprehensive 3D model for geological comprehensive analysis and engineering application.
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