洪泽湖北部黄泛区三维地质建模及可视化系统的应用研究

传统地质调查存在信息庞杂、叠加失真和评价失效等问题，难以应用于工程决策中，而大量勘察工作所积累复杂多样地质数据，也给工程顺利进展带来极大困扰。以洪泽湖北部黄泛区（泗阳县）为例，从三维地质建模系统及可视化的概念出发，探讨了基于钻孔数据的三维建模的一般过程，包括数据库建立、系统开发、信息查询与管理、三维模型建立及可视化分析。研究得出，基于Access数据库建立了综合地质数据库，实现了数据库和软件的基本功能；基于Sakia3D平台，采用“钻孔—层面”模型方法，建立了泗阳县三维地质模型；研发了基于三维模型的剖面分析和专业剖切分析功能。研究提高了软件可操作性，节省了工程造价，缩短了工期。

Study on application of 3D geological modeling and visualization system in the Yellow River Flood Area in the North of Hongze Lake

Traditional geological survey has many problems,such as complicated information,superimposed distortion and evaluation failure,which are difficult to apply to engineering decision-making.However,a large number of complex and diverse geological data accumulated in the survey work also brings great trouble to the smooth progress of the project.Taking the Yellow River flooded area(Siyang County) in the north of Hongze Lake as an example,starting from the concept of 3D geological modeling system and visualization,this paper discusses the general process of 3D modeling based on borehole data,including database establishment,system development,information query and management,3D model establishment and visualization analysis.It is concluded that a comprehensive geological database is established based on Access database,and the basic functions of the database and software are realized.Based on the Sakia3D platform,the three-dimensional geological model of Siyang County is established by using the "borehole layer" model method.Section analysis and professional section analysis based on 3D model are developed.The research improves the software operability,saves the project cost and shortens the construction period.