承赤高速公路头沟互通式立交方案研究

发布时间：2018-04-24 19:44

本文选题：高速公路 + 互通式立交　；参考：《河北工业大学》2015年硕士论文

【摘要】：互通式立交是国家干线路网,尤其是高速公路必须的组成部分。它作为高速公路之间交通流互相转换的主要节点,为车辆的安全、快速以及流畅的运行提供保障。互通式立交的布局规划是高速公路路网规划的重要内容,合理的设置立交对高速公路路网功能和特点的发挥有着及其重要的意义,不仅能够保障交通流的连续性,优化区域生产力的布局,而且能够促进空间的合理利用。互通式立交总体布局合理与否、方案是否可行等关系到以后的经济、社会效益,特别是在山区高速公路设计过程中,受地形限制,如布局不合理,必然增加工程规模,导致经济和资源的浪费。本文先结合互通式立交的特点,阐述在立交的规划、选型及设置时应遵循的一般原则和选定时要考虑的主要因素;然后按照互通式立体交叉一般设计原则、技术标准等设计方法,从分析交通量入手,结合实际地形、地质情况,对山区互通式立交的选型、设置原则以及在工程实际应用中的设计关键点进行阐述;同时针对山区地形的特殊性,详细论述了山区互通立交匝道平面、纵断面线形以及匝道鼻端和加减变速车道的基本设计原则、技术指标及应注意的问题,最后,对山区互通式立交设计中遇到的常见问题提出了建议。通过三个互通立交方案的分析,综合各个因素比选,推荐采用单喇叭互通立交的方案。按照互通式立体交叉的一般设计原则和设计方法,对头沟互通式立体交叉的线形设计理念、纵断面线形不断优化以及变速车道的各种指标取值等三个方面进行了分析评价;计算了对头沟互通式立体交叉的主要工程量,评价了整个工程的经济、技术指标。
[Abstract]:Interchange is a necessary part of national trunk road network, especially highway. As the main node of traffic flow conversion between highways, it guarantees the safety, speed and smooth operation of vehicles. The layout planning of interchange is an important content of highway network planning. The reasonable setting of interchange is of great significance to the function and characteristics of expressway network, and can not only guarantee the continuity of traffic flow. Optimize the layout of regional productivity, and can promote the rational use of space. Whether the overall layout of the interchange is reasonable or not, whether the scheme is feasible or not is related to the future economic and social benefits, especially in the design process of the mountain highway, which is restricted by the topography, such as unreasonable layout, which will inevitably increase the scale of the project. Leading to a waste of economy and resources. Based on the characteristics of interchange, this paper expounds the general principles to be followed and the main factors to be considered in the planning, selection and setting of interchange, and then according to the general design principle of interchange, Based on the analysis of traffic volume, combined with the actual terrain and geological conditions, this paper expounds the selection, setting principles and key points of design in practical application of mountain interchanges. At the same time, according to the particularity of mountain terrain, this paper discusses in detail the basic design principles, technical indexes and problems needing attention of the ramp plane, the profile of the longitudinal section, the nose end of the ramp and the variable speed lane of the ramp of the mountain interchange. Suggestions on common problems encountered in the design of mountain interchanges are put forward. Through the analysis of three interchange schemes and the comparison of various factors, the single horn interchange scheme is recommended. According to the general design principle and design method of interchange, this paper analyzes and evaluates three aspects, such as the linear design idea of headditch interchange, the continuous optimization of longitudinal section alignment and the value of various indexes of variable speed lane. The main engineering quantities of the intersecting of the head groove are calculated, and the economic and technical indexes of the whole project are evaluated.
【学位授予单位】：河北工业大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：U412.352.1

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