基于体元模型的工程勘查三维地质建模及Geo3DML转换研究  

Research on 3D geological modeling and Geo3DML transformation of engineering exploration based on voxel model

作　　者：曾涛[1,2,4,5] 郭甲腾 杨坡[1,2,4,5] 陈新[1,2,4,5] 张文娟 屈茜茜[1,2,4,5] ZENG Tao;GUO Jia-teng;YANG Po;CHEN Xin;ZHANGWen-juan;QU Qian-qian(HenanGeological Survey Institute,Zhengzhou 450000,China;Henan Research Center ofUrbanGeological Engineering Technology Zhengzhou 450000,China;School of Resources of Civil Engineering,NortheasternUniversity,Shenyang 110819,China;Henan Bureau ofGeology andmineral exploration,Henan geological big data application center,Zhengzhou 450000,China;Henan natural resources science and Technology Innovation Center(smart city space-time big data),Zhengzhou 450000,China)

机构地区：[1]河南省地质调查院,郑州450000 [2]河南省城市地质工程技术研究中心,郑州450000 [3]东北大学资源与土木工程学院,沈阳110819 [4]河南省地质矿产勘查开发局河南省地质大数据应用中心,郑州450000 [5]河南省自然资源科技创新中心(智慧城市时空大数据),郑州450000

出　　处：《华北地质》2021年第3期77-82,共6页North China Geology

基　　金：河南省自然资源厅科研项目(豫国土资发[2018]98号);河南省地质矿产勘查开发局财政规划地质科研项目(豫地矿科研[2020]1号);国家自然科学基金资助项目(41671404)。

摘　　要：通过对复杂地质条件进行分析和研究,建立建筑工程所在区域的三维地质模型,可为城市建设提供技术支撑。本文设计了一套基于郑州航空港项目勘探钻孔数据及地层分层资料的三维地质建模流程,该方法采用GTP建模方法,自动创建三维地层模型。同时,针对目前三维地质模型数据格式繁多,交换困难的问题,提出了广义三棱柱体元模型转换为中国地质调查局颁布的三维地质模型数据交换格式标准(Geo3DML)文件的方法。本文详细描述了Geo3DML的背景、制定过程、标准概况与试用情况,编程实现了三维地质体元模型向Geo3DML转换的技术途径和一些关键技术以及对数据输出质量控制的选项设置方法。实验表明,三维地质体元模型向Geo3DML转换的结果能够较好地表达三维地质模型几何特征和属性特征。By establishing the 3D geological model of the area where the construction project is located,architectural designers and constructors can analyze and study the complex geological conditions and provide technical support for urban construction.This paper designs a set of 3D geological modeling process based on the exploration drilling data and stratigraphic stratification data of Zhengzhou Airport Project.This method uses GTP modeling method to automatically create three-dimensional stratigraphic model.At the same time,aiming at the problems of various data formats and difficult exchange of 3D geological model,a method of transforming the generalized triangular prism voxel model into the 3D geological model data exchange format standard(Geo3DML)file issued by China Geological Survey is proposed.This paper describes the background,formulation process,standard overview and trial situation of Geo3DML in detail.The technical approach and some key technologies of the transformation from 3D geological voxel model to Geo3DML are programmed,as well as the option setting method of data output quality control.Experiments show that the results of the transformation from 3D geological voxel model to Geo3DML can better express the geometric and attribute characteristics of 3D geological model.

关 键 词：三维地质模型 数据交换格式 Geo3DML 体元模型 

分 类 号：P628[天文地球—地质矿产勘探] P642[天文地球—地质学]