文档介绍：摘要铁路选线设计是土木工程、交通运输等专业的一门实践性课程;本设计主要训练学生综合运用所学基础知识的能力,培养学生用定性分析方法对问题进行综合分析和评价。本设计是对“能力计算”、“平纵面设计”等知识的拓宽与综合应用。通过毕业设计使学生在巩固所学能力计算和方案经济比较的基本方法,熟悉并运用《铁路线路设计规范》,从而加深对所学内容的理解,提高综合分析和解决问题的能力,为毕业后从事设计施工或继续深造奠定基础。本设计的主要内容是对黄杖子龙须门进行铁路选线设计,线路设计 K0+000 到 K20+390 选线设计,铁路全长共 ,铁路设计时速 200km/h ,为单线铁路。通过对沿途的地形地貌及房屋建筑分布进行分析,查找相应技术规范,从而确定铁路的等级以及设计所需要的各种参数。根据所学过的《铁路选线设计》、《路基工程》、《铁路轨道》等知识,运用 CAD 以及相关软件绘制线路的平面图,纵断面图、横断面图以及挡土墙的相关的计算说明。关键词: 平面、纵断面、横断面、挡土墙 ABSTRAC Railway route design is civil engineering, transportation and a practical courses, This design main training students' comprehensive ability to use the basic knowledge, raises the student with qualitative analysis method prehensive analysis and evaluation problem. This design is calculated for "ability" and "flat vertical plane design" knowledge, broaden prehensive application. Through the graduation design makes the students learned capacity calculation and consolidate the basic methods of parison, familiar with and use the railway line design specification, thus deepening understanding of content, improve prehensive analysis and problem solving ability for design and construction of foundation or continue. The design of the main contents of the selection design the huangzhangzi longxumen new railway K0+000 to K20+390 segment,railways total length of20. 39 Km,railway design speed of 200Km/h,single-track railway. Analyed by the building construction distribution and along topography, look up the corresponding technical specifications in order to determine the level of the railway and the various paramenters of the design. Based on knowledge of the railway line selection,subgrade,railway track,the use of CAD and relate soft ware to draw the line plan,longitudinal section, cross-sectional diagaram , related calculationa show and Retaining wall. Key words: plane, longitudinal , cross-sectional, Retaining wall 目录第一章绪论.................................................................................................................