华南地质2023，Vol.39Issue(4)：733-745,13.DOI:10.3969/j.issn.2097-0013.2023.04.014
基于三维剖面的复杂地质体显式自动建模方法研究
Research on Explicit Automatic Model-ing Method of Complex Geological Body Based on Three-dimensional Profile
摘要
Abstract
This paper presents an explicit automatic modeling method for complex geological bodies based on 3D geological profile data and combined with strong constraints of surface topography,faults,geological maps and other data.This method supports the processing and construction of complex geological structures that may cause horizontal stratigraphic unit breakage,vertical multiple solutions and inversion,such as fault interlacing,folds,intrusive rocks,volcanic channels,etc.,and can achieve human intervention on modeling results to a certain extent through the adjustment of data attribute parameters.The modeling process of this method is introduced in detail,including the preparation and processing of modeling data,the construction of fault segmentation plane,the construction of framework(primary)stratum model,and the construction of fine(secondary)stratum model.The difficult problems solved by this modeling method are highlighted.The land area of Guangdong Province is divided into strip areas by using this method together with the parallel profile dividing method,and then 3D geological modeling is carried out in each strip area which is regards as the initial modeling unit,Finally,the 3D geological models of each strip are seamlessly spliced,and the 1:250000 bedrock 3D model of the whole Guangdong Province is obtained for the first time.This method can provide a reference for rapid modeling of large-scale complex geological bodies.关键词
三维地质剖面/平行剖面/复杂地质体/显式自动建模/广东省Key words
3D geological profile/Parallel profiles/complex geological body/explicit automatic modeling/Guangdong Province分类
天文与地球科学引用本文复制引用
张源,朱俊凤,刘敬,陈浩权,肖艳云..基于三维剖面的复杂地质体显式自动建模方法研究[J].华南地质,2023,39(4):733-745,13.基金项目
广东省自然资源厅城市地质信息管理服务平台建设(项目编号:[2021]-2) （项目编号:[2021]-2）
