三维无缝工程地质建模系统的研制

在边界表示法的基础上,提出了无缝工程地质模型的概念,实现了基于模型线框架的无缝工程地质建模方法,研制了无缝建模系统(ROCKModel).该系统包括3个部分:原始数据转换工具、实体建模工具与辅助工具,涉及剖分、插值、曲面求交等8个基本功能模块.在基本功能模块的基础上,提出并实现了形态复杂曲面的创建、构建模型线框架、界面编辑与重构、块体搜索、岩体质量三维分级等关键技术.该系统能够实现复杂地质对象与工程对象的无缝建模与可视化,并为数值模拟软件直接提供几何模型.

Development of 3D seamless engineering geological modeling system

On the basis of boundary representation, the notion of sealed engineering geological model is proposed; and an approach for building a seamless engineering geological model based on wire frame is presented. And a sealed modeling software system, ROCKModel, is developed. This system includes three main components: original data transforming tools, solid modeling tools and auxiliary tools. And it includes eight basic functional modules, such as: mesh generation for surface and solid, surface interpolation, surface intersection searching, etc. Based on these basic modules, five key algorithms, creating complex surfaces, creating wire frame, interfaces modification and reconstruction, blocks searching, and 3D rock quality classification are proposed and realized. This system can build and visualized seamless models for complex geological and engineering objects, and provide geometrical models for numerical simulation software directly.