复杂地层结构模型三维重构与可视化方法研究

A research of three dimensional re-construction and visualization of complex stratum structure model

针对工程建筑、水利水电建设以及地质灾害防治等工程地质学研究中的空间结构分析与信息可视化问题,提出了一种基于单元块体的空间自动搜索地质建模方法。该方法的主要思想是:首先由地质专家充分利用工程地质勘探的资料,并结合自身经验,在交互式环境中完成2D/3D剖面解释;而后系统自动完成地质结构单元块体搜索,运用CSG集合运算并根据地质单元块体的空间拓扑结构实现复杂三维地质模型的构建。本方法通过引入地质单元体的概念,并在建模过程中融合地质专家的知识,使地质模型的建模过程得到了简化,提高了模型的精度,有效地解决了复杂三维地质模型的建模问题。

This paper refers to the researching engineering geology issue of space structure analysis and about engineering architecture, informational visualization in hydraulic and hydroelectric engineering and geohazards etc. and proposes a method for complex geology modeling based on the space filed auto-search geological block. The main idea of this method is to let geologists interactively interpret 2D/3D section by making use of the limited data of engineering geology and their experiences, and then the system will automatically complete the search of geological blocks and realize the construction of a 3-D complex geological model according to the spatial topology of geological blocks and using operations of CSG. This method integrates the knowledge of geologists in the process of model building and proposes the concept of cell block, so that it simplifies the process of model building, heightens the precision of the model and solves the problem of a complex 3-D model building effectively.