复杂地质体三维实体建模方法  

3D Solid Modeling Method for Complex Geological Bodies

作　　者：何紫兰 朱鹏飞[2] 白芸[2] 曹珂[2] 孔维豪[2] HE Zilan;ZHU Pengfei;BAI Yun;CAO Ke;KONG Weihao(School of Earth Sciences and Resources,China University of Geosciences,Beijing 100083;Beijing Research Instituteof Uranium Geology,Beijing 100029)

机构地区：[1]中国地质大学(北京)地球科学与资源学院,北京100083 [2]核工业北京地质研究院,北京100029

出　　处：《地质与勘探》2020年第1期190-197,共8页Geology and Exploration

基　　金：国家预先研究项目(编号:0402013)资助

摘　　要：依托常规GIS技术的建模手段不能满足复杂地质体三维实体建模的需求,其建模效果在真三维建模、实体模型应用等方面受限。本文根据复杂地质体的特征,将复杂地质体分为层状的连续型非倒转地质体、非连续型(断裂)地质体、倒转褶皱地质体和非层状地质体。从三维实体建模的角度,提出数据拆分、数据控制、数据简化三种建模数据处理方法,并借助三维GIS的可视化技术与GOCAD真三维建模能力,研究基于GOCAD软件的复杂地质体三维实体建模方法,详细阐述了四类复杂地质体的具体实现方法,并构建三维实体模型。The modeling method relying on conventional GIS technology cannot meet the need of 3D solid modeling of complex geological bodies,and is limited in true 3D modeling and solid model applications.According to the characteristics of geological bodies,this paper divides complex geological bodies into layered continuous non-inverted,discontinuous(broken),inverted folded and a non-layered geological bodies.From the perspective of 3D solid modeling,this paper proposes three data processing methods:data split,data control and data simplification.With the help of the visualization technology of 3D GIS and the real 3D modeling ability of GOCAD and entity modeling method,the detailed realization procedures of four kinds of complex geological bodies are elucidated,and finally a three-dimensional solid model for complex geologic bodies is constructed.

关 键 词：复杂地质体 实体建模 GOCAD 数据拆分 

分 类 号：P619.14[天文地球—矿床学]