Abstract: Reservoir engineering construction has high requirements for the work of geological specialty. How to accurately show the specific image of the complex survey results and improve the readability and availability of the survey results documents is a direction of the current water conservancy survey industry. In this paper, the AglosGeo 3D geological system developed based on Microstation platform is used to conduct 3D geological modeling of a reservoir dam site, analyze, evaluate and summarize the modeling process, and study the applicability and advantages of 3D geological technology in reservoir projects. Through the research, it is found that the 3D geological technology can cover the geological condition information in the database, make the 3D geological model has geological information attributes, and can carry out a series of analysis and calculation, so that the geological results can be better understood and used by relevant designers.3D geological technology will be able to change the general view of geological difficulty, become an indispensable part of the survey field, and even become an advantage part of the survey field.

Key words: engineering geological conditions, three-dimensional geology, geological evaluation, auxiliary section

摘要： 水库工程建设对地质专业的工作要求较高,如何准确地把复杂的勘察成果形象具体地表现出来,提高勘察成果文件的可读性和可用性,是目前水利勘察行业努力的一个方向。文中利用基于Microstation平台开发的AglosGeo三维地质系统对某水库坝址区进行三维地质建模,通过对建模过程进行分析评价总结,研究三维地质技术在水库项目中应用的适用性和优势。通过研究发现,三维地质技术能够将地质条件信息涵盖于数据库中,使得三维地质模型具有地质信息属性,并能够进行一系列的分析和计算,以便地质成果更好地被相关设计人员理解、使用。三维地质技术将改变人们普遍认为地质晦涩难懂的看法,成为勘察领域不可缺少的一部分,甚至优势部分。

关键词: 工程地质条件, 三维地质, 地质评价, 辅助剖面