【作者】 邓念东；

【导师】 侯恩科；

【作者基本信息】 西安科技大学 ， 地质工程， 2009， 博士

【摘要】 三维地质模拟(3DGM)是当前三维地理信息系统(3DGIS)和数字矿山(DM)理论与技术发展急需研究和解决的关键问题之一,其研究成果对基础地质研究、矿产资源勘查与开发等具有重要意义。本文以地理信息系统理论为指导,以点集拓扑理论为基础,采用面向对象的方法研究了基于剖面的三维拓扑(OO-Solid)数据模型和数据结构,采用计算几何、地理信息系统、计算机图形图像学等方法研究了基于修正后的OO-Solid数据模型的三维地质模型构建与动态更新方法。在数据模型和数据结构研究方面,针对OO-Solid数据模型的不足,修正了OO-Solid数据模型及其构模元素,对修正后的OO-Solid数据模型进行了形式化描述,重新设计了相应的拓扑关系和数据结构。在基于修正后的OO-Solid数据模型的三维地质模型的构建方法研究方面,主要研究了三维地质建模的流程、空间剖面的定义与生成方法、体元的生成方法、三维地质模型的生成方法和关键算法,提出了“剖面构模元素拓扑关系自动构建”的新算法、“已知前后剖面推断中剖面”的新思路和构建复杂地质体的“分而构之”的新方法。在基于修正后的OO-Solid数据模型的三维地质模型的动态更新方法研究方面,提出了“由上至下”进行动态更新的思路和点、线、面、体四类对象动态更新的方法。在上述研究的基础上,以SQL Server2000、VC++6.0、OPENGL等为工具,进行了实验系统的设计与开发,并利用河北金牛能源股份有限公司章村矿地质勘探和生产数据对所开发的实验系统进行了应用研究,验证了上述几方面研究成果的实用性和有效性。更多还原

【Abstract】 Three-Dimensional Geological Modeling (3DGM) is one of the key issues of Three-Dimensional Geological Information System (3DGIS) and Data Mine. It is significant that its’research results apply in the region of basic geological research and resource exploration and development.The Geographic Information System (GIS) theory as a guide, point-set topology theory as basis, this paper uses object-oriented method to study on profile-based three-dimensional topological data model and data structure. By use of computational geometry, GIS, computer graphics images, 3DGM, the construction and dynamic updating methods of 3DGM are researched on the basis of amended OO-Solid data model. In research on data model and data structure, according to the limitations of modeling, data model and its elements of OO-Solid was revised. After revision, the revised OO-Solid data model was formal described, and the topological relationship and data structure was redesigned. Based on the revised OO-Solid model, the paper researched the construction methods of three dimensional geological models, includes the process of 3DGM the definition of spatial profile and generated methods, the generation methods of body element, generation methods and key algorithms of 3DGM. The new algorithm which the auto construction about topological relationship of profile modeling elements are automatic constructed, was proposed. The new idea, which was inferred the mid-profile on the basis of known fore-profile and back-profile, was given. The new method, which was divided the complex geological model and constructed later, was put forward. Based on revised OO-Solid data model in the dynamic updating methods of three-dimensional geological model, the new idea, which was updating from up to bottom, and the dynamic updating method about point, line, surface and body are proposed. On the basis of above study, SQL Server2000、VC++6.0、OPENGL as tools, the experimental system was designed and developed. It was shown that the paper verify the practicality and effectiveness of three-dimensional data model, three-dimensional modeling methods and algorithm for dynamic update by using examples of the actual coal mine exploration and production data from ZhangCun mine in HeBei Jinniu energy company limited.更多还原