Geological feature driven 3D geological modeling

XU Guo, WANG Changhai, and ZHOU Xiaoqin 1) Nanning Exploration & Survey Design Institute Group Co. Ltd., Nanning 530028, Guangxi Zhuang Autonomous Region, P. R. China 2) Guangxi Communications Design Group Co. Ltd., Nanning 530029, Guangxi Zhuang Autonomous Region, P. R. China 3) School of Civil and Architecture Engineering, Guangxi Vocational and Technical College of Communications, Nanning 530023, Guangxi Zhuang Autonomous Region, P. R. China Abstract: 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.