基于真三维地质实体大比例建模的空间立体选线方法研究

项目名称： 基于真三维地质实体大比例建模的空间立体选线方法研究

项目编号： No.51278316

项目类型： 面上项目

立项/批准年度： 2013

项目学科： 建筑科学

项目作者： 吕希奎

作者单位： 石家庄铁道大学

项目金额： 80万元

中文摘要： 铁路选线设计是在三维空间决定线路位置的决策优化过程，特别是山区，河谷深切、构造复杂，不良地质普遍发育，地质因素往往成为线路方案取舍的决定因素。因此，如何更为直观的分析和应用地质信息为选线服务已成为实现山区铁路地质选线急须解决的问题。与以往基于二维平面成图的CAD选线方式相比，三维可视化技术地质选线具有立体感强、资料利用率高、信息可视化等优点。目前关于大范围的用于铁路选线设计的三维地质实体建模还未见报道，课题基于GIS平台，研究集成多源地质信息模型、遥感信息模型、三维地理模型以及工程地质评价模型的多模型系统；研究构建三维地质环境下的空间立体选线决策模型和三维可视化地质选线与评价方法。为三维地质实体的大比例建模、三维空间地质选线、工程地质条件评价和分析、线路方案决策构建三维可视化平台，为实现铁路地质选线提供新思路与新靶点。

中文关键词： 三维地质实体；大比例建模；空间立体选线；决策模型；知识库

英文摘要： The railway line selection is the decision-making optimization process to determine the line position in three-dimensional space, Especially Mountains have deep valleys and complex structures, poor geological development generally, and geological factors often become the determinants of the line program choice. Therefore, how intuitive analysis and application of geological information for the selected line Services become an urgent need to solve problems for the mountain railway geology line selection. Compared to the Past of two-dimensional plane maps line selection method, 3D visualization technology geological line selection method has stereoscopic, high utilization of data and information visualization advantage. The Three-dimensional geological solid modeling on a wide range of design for the railway line selection has not been reported, The Issue Research integrated source of geological information model, remote sensing information model, the model of three-dimensional geographic and engineering geological assessment model system based on GIS; Constructed a decision-making model of spatial line selection In the three-dimensional geological environment and 3D visualization of geological line selection and evaluation methods. For a large proportion of the entity of three-dimensional geological modeling, Thr

英文关键词： Three-dimensional geological entity；large-scale modeling；spatial three-dimensional line selection；decision model；knowledge base