基于环境影响评价的铁路选线技术研究

发布时间：2018-02-03 23:18

本文关键词： 铁路选线环境影响评价组件式GIS　出处：《西南交通大学》2012年硕士论文　论文类型：学位论文

【摘要】：要实现铁路运输的可持续发展,必须在铁路线路拟定时研究铁路建设与环境的关系,做好环境保护工作。铁路建设规模的不断扩大,要求铁路环境影响评价工作不断发展。因此,本文基于环境影响评价的铁路选线技术,利用在环境、交通领域不断深入应用的地理信息系统(Geographic Information System,简称GIS),进行铁路绿色选线的研究。论文主要工作如下： (1)综合分析基于环境影响评价的铁路选线技术,利用GIS,在.NET平台上,进行基于环境影响评价的铁路选线技术研究。 (2)参考国内外建设项目环境影响评价的研究资料,分析铁路建设各阶段与环境的关系以及造成的影响,建立评价指标体系。 (3)对前人研究成果进行吸收并进行改进,建立基于环境影响评价的铁路选线系统。充分利用C sharp. NET与ArcGIS Engine的良好兼容性,在.NET平台下进行ArcGIS Engine二次开发,通过编程实现：在线路拟定时,用敏感等级值表征地理单元的各种要素的环境敏感性,并对应敏感等级图中不同颜色,运用层次分析法确定各环境要素的权重,叠加得到综合敏感等级图,直观感受环境敏感走廊指导选线；在方案比选时,运用矩阵法筛选评价因子,层次分析法重建评价指标体系、确定权重值,调用建立的环境影响预测评价模型库,系统根据敏感区域图层、线路方案图层,以不同缓冲区半径体现不同因子对线路环境的影响范围,输入相关参数,自动筛选所需预测的敏感区域完成影响预测,一次性生成各方案的综合环境影响值,比较各方案对环境的影响程度。 (4)以重庆至贵阳扩能改造工程为实例,对基于环境影响评价的铁路选线系统进行应用分析。
[Abstract]:In order to realize the sustainable development of railway transportation, we must study the relationship between railway construction and environment, do a good job of environmental protection, and expand the scale of railway construction. Therefore, this paper based on the environmental impact assessment of railway line selection technology, use in the environment. Geographic Information system (GIS), which is widely used in the field of transportation, is used to study the green railway route selection. The main work of the thesis is as follows: 1) Comprehensive analysis of railway route selection technology based on environmental impact assessment, and research on railway route selection technology based on environmental impact assessment on. Net platform using GIS. 2) referring to the research data of environmental impact assessment of construction projects at home and abroad, this paper analyzes the relationship between each stage of railway construction and the environment and the impact caused by it, and establishes the evaluation index system. 3) absorbing and improving the previous research results. The railway line selection system based on environmental impact assessment is established. The good compatibility of C sharp. NET and ArcGIS Engine is fully utilized. The second development of ArcGIS Engine on. Net platform is realized by programming: when the circuit is drawn up, the sensitivity grade value is used to express the environmental sensitivity of various elements of geographical unit. According to the different colors in the sensitive grade map, the weight of each environmental element is determined by AHP, and the comprehensive sensitive grade map is obtained by superposition to direct the selection of the sensitive corridor directly. The matrix method is used to screen the evaluation factors, the AHP is used to reconstruct the evaluation index system, the weight value is determined, the environmental impact prediction evaluation model base is called, and the system is based on the sensitive area layer. The line scheme layer reflects the influence range of different factors on the line environment with different buffer radius, inputs the relevant parameters, and automatically screens the sensitive area of the forecast to complete the impact prediction. The comprehensive environmental impact value of each scheme was generated in one-time, and the degree of environmental impact of each scheme was compared. Taking Chongqing to Guiyang as an example, the railway line selection system based on environmental impact assessment is analyzed.
【学位授予单位】：西南交通大学
【学位级别】：硕士
【学位授予年份】：2012
【分类号】：U212.32;X820.3

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