基于GIS最优路径技术的铁路选线研究
发布时间:2018-03-09 04:23
本文选题:铁路选线 切入点:最优路径 出处:《中南大学》2013年硕士论文 论文类型:学位论文
【摘要】:铁路选线最优路径问题属于带约束多目标最优化问题,其最终方案的确定既要考虑科学技术因素、又要考虑社会经济因素,还要考虑自然环境因素。传统的选线方法主要依靠设计者的经验和水平,对各种影响因素难以做到综合权衡。随着计算机技术的飞速发展和数字地图的日渐兴起,基于数字地图的人机交互选线设计系统研究正成为当今铁路选线的发展方向。在国家自然科学基金面上项目(51078361)的资助下,本文从铁路选线与GIS最优路径分析技术相结合的角度出发,对基于GIS的铁路选线辅助设计方法开展了以下研究工作: 第一,对铁路选线的相关理论和国内外的研究现状进行了归纳和总结。 第二,对影响铁路选线的众多因素进行分析,建立铁路选线影响因素指标体系。综合运用系统工程、优化理论及模糊理论,提出基于模糊属性层次模型的指标权重计算方法。 第三,根据数字地形模型的思想,以ArcGIS的最优路径分析技术为工具,充分结合铁路行经区域内的地形、地质、地物和环境数据,对每个影响因素栅格图层的栅格单元赋予相应的属性值,用以表示铁路经过不同栅格单元的成本费用,构建铁路选线分析模型。 第四,基于Visual Basic.NET编程语言、Microsoft SQL Server2005数据库以及ArcEngine组件技术对ArcGIS进行二次开发,开发出基于ArcGIS的铁路选线辅助设计系统。本系统不仅可以对单因素和多因素影响下的线路走向分别进行分析,还可以对最优路径方案做进一步的细化设计,实现了线路平面的快速绘制和曲线要素的自动标注。 最后,以彰朋至五原新建铁路设计为例对基于ArcGIS的铁路选线辅助设计程序进行测试,设计最优线路方案。
[Abstract]:The optimal route problem of railway line selection belongs to the multi-objective optimization problem with constraints. The final scheme of the problem should take into account not only the scientific and technological factors, but also the social and economic factors. The traditional route selection method mainly depends on the designer's experience and level, and it is difficult to balance all kinds of influence factors. With the rapid development of computer technology and the rising of digital map, The research of human-computer interactive route selection system based on digital map is becoming the development direction of railway line selection nowadays. Supported by the National Natural Science Foundation of China 51078361), From the point of view of the combination of railway route selection and GIS optimal path analysis technology, this paper has carried out the following research work on the railway line selection aided design method based on GIS:. First, the related theory of railway route selection and the current research situation at home and abroad are summarized and summarized. Secondly, this paper analyzes many factors that affect railway route selection, establishes the index system of railway route selection factors, and puts forward a calculation method of index weight based on fuzzy attribute hierarchy model by comprehensive use of system engineering, optimization theory and fuzzy theory. Thirdly, according to the idea of digital terrain model, with ArcGIS's optimal path analysis technology as a tool, the terrain, geology, features and environmental data of railway passing through the area are fully combined. The grid cells of each influencing factor grid layer are assigned with corresponding attribute values to represent the cost of railway passing through different grid units, and a railway line selection analysis model is constructed. 4th, based on Visual Basic.NET programming language, Microsoft SQL Server2005 database and ArcEngine component technology, ArcGIS is redeveloped. A railway line selection aided design system based on ArcGIS is developed. This system can not only analyze the track direction under the influence of single factor and multiple factors, but also make further detailed design for the optimal route scheme. The fast drawing of line plane and the automatic marking of curve elements are realized. Finally, taking the new railway design of Changpeng-Wuyuan as an example, the program of railway route selection based on ArcGIS is tested, and the optimal route scheme is designed.
【学位授予单位】:中南大学
【学位级别】:硕士
【学位授予年份】:2013
【分类号】:P228.4;U212.32
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