工程地质学报2024，Vol.32Issue(3)：1143-1153,11.DOI:10.13544/j.cnki.jeg.2024-0103
三维地质建模技术与方法综述
A REVIEW OF 3D GEOLOGICAL MODELING TECHNOLOGY AND METHODS
摘要
Abstract
3D geological modeling is a 3D digital technology originating from computer graphics in the industrial field and later introduced into geoscience.The irregularity of geological mass,spatial heterogeneity of geological characteristics,sparsity of known parameters,and the iterative nature of the understanding process determine the special requirements for graphics geometry algorithms and rendering techniques in 3D geological modeling.These factors also determine the fundamental difference between 3D technologies in other fields such as GIS and BIM.In response to the reality that there is a wide variety of engineering geological 3D geological modeling technologies in China's infrastructure construction field,with varying levels of quality,this paper systematically expounds on the basic theory of 3D geological modeling,core technologies,modeling methods,application function implementation,and prospects:(1)3D geological modeling is based on the theory of discrete mathematics,with interpolation algo-rithms being the most critical core technology.This paper introduces and compares two interpolation methods,dis-crete smoothing(DSI)and Kriging.It argues from the perspectives of principle and application that DSI has better adaptability.(2)Explicit and implicit modeling methods are the common methods of three-dimensional geological modeling formed by the core technology for different scenarios,which are suitable for geographical exploration and geophysical exploration in the field of engineering geology respectively.The paper illustrates the characteristics of each method with application cases.(3)Application functions are the ways in which explicit and implicit modeling methods are applied to geological bodies with different characteristics.The general-purpose functions are applicable to all geological bodies involved in geological fields such as strata and structures,while customized functions are aimed at specific geological masses concerned by the industry(such as the deep valley bank slope unloading belt in the hydropower industry)and the main purpose is to improve the modeling efficiency.By summarizing the stage of 3 D geological modeling technology,this paper provides valuable technical guidance for future development and will provide important technical support for the transparent representation of 3D engineering geological body structure.关键词
工程地质/三维地质建模/插值算法/显式建模方法/隐式建模方法Key words
Engineering Geology/3D geological modelling/Interpolation algorithm/Explicit method/Implicit method分类
地质学引用本文复制引用
郭福钟,郑博文,祁生文,李航,朱焕春,岳云艳,谢焕忠..三维地质建模技术与方法综述[J].工程地质学报,2024,32(3):1143-1153,11.基金项目
国家自然科学基金项目(资助号:42141009),第二次青藏高原综合科学考察研究项目(资助号:2019QZKK0904),中国科学院地质与地球物理研究所重点部署项目(资助号:IGGCAS-202201).This research is supported by the National Natural Science Foundation of China(Grant No.42141009),the Second Tibetan Plateau Scientific Expe-dition and Research Program(STEP)(Grant No.2019QZKK0904)and Key Research Program of the Institute of Geology and Geophysics,CAS(Grant No.IGGCAS-202201). （资助号:42141009）
