山区低等级公路升级改造技术研究

发布时间：2018-02-09 12:11

本文关键词： 山区低等级公路升级改造设计方法运行速度线形评价　出处：《长安大学》2015年硕士论文　论文类型：学位论文

【摘要】：我国公路网建设已经初具规模,但仍远远没有达到发达国家的水平,近年来我国进入了大规模的公路改扩建时期,在高等级路的改扩建方面积累了一定经验,但在低等级公路改扩建方面经验不足,对于这方面的研究也较少,在升级改造过程中主要以新建为主,对原有道路资源的利用率低,造成资源浪费。针对这些问题,本文对山区低等级公路的改造升级技术进行研究,以期为类似工程提供借鉴。本文首先分析山区的自然地理、人文经济特点,然后调查分析山区低等级公路的特点,针对这些特点,提出山区低等级公路升级改造的原因、升级改造的形式及升级改造适用的技术标准,提出升级改造的基本原则,依托贵州省道S205福泉高楼至龙山段升级改造项目,在充分考虑了路线所经过地区路网规划、公路现状、乡镇规划等因素、地方经济、自然条件、土地资源的情况下,对公路设计的路线、路线方案比选、路基、路面、桥涵、隧道的改造升级方法进行了研究和系统的总结,得到的方法可为其他山区低等级公路升级改造所用。最后根据《公路工程技术标准》(JTG B01-2014)中要求用运行速度进行检查的相关规定,系统总结低等级道路运行速度预测模型,运用预测模型计算出了路线各个分段的运行速度,采用标准规定的评价标准对依托工程的推荐方案路线进行了运行速度协调性评价和运行速度与设计速度一致性评价,找出路线设计不足的地方,针对问题,提出修改意见来完善原有设计。本文通过依托工程贵州省道S205福泉高楼至龙山段项目对低等级公路的升级改造的技术和方法进行了研究,为低等级道路的升级改造提供了一种思路,即对原有道路资源进行最大程度的利用,利用运行速度评价的方法对路线进行评价,针对设计不合理的路段进行改进,确保行车安全,既能降低工程造价,又能使资源得到充分合理的利用。
[Abstract]:The construction of highway network in our country has begun to take shape, but it is still far from the level of developed countries. In recent years, our country has entered the period of large-scale highway reconstruction and extension, and has accumulated some experience in the reconstruction and expansion of high-grade roads. However, there is not enough experience in the reconstruction and extension of low-grade highway, and the research on this aspect is also less. In the process of upgrading and upgrading, the main purpose is to build new roads, and the utilization ratio of the original road resources is low, which results in the waste of resources. In this paper, the upgrading technology of low grade highway in mountainous area is studied in order to provide reference for similar projects. Firstly, this paper analyzes the natural geography, humanistic and economic characteristics of mountain area, and then investigates and analyzes the characteristics of low grade highway in mountain area. In view of these characteristics, this paper puts forward the causes, forms and technical standards of upgrading and upgrading of low-grade highways in mountainous areas, and puts forward the basic principles of upgrading and upgrading. Relying on the upgrading and renovation project of Guizhou Provincial Highway S205 Fuquan High-rise Building to Longshan Section, with the full consideration of the road network planning, highway status quo, township planning and other factors, local economy, natural conditions, and land resources, The route and route scheme of highway design, roadbed, pavement, bridge and culvert, and the upgrading method of tunnel are studied and summarized systematically. The method obtained can be used for upgrading and upgrading of low-grade highways in other mountain areas. Finally, according to the relevant regulations of JTG B01-2014, the prediction model of running speed of low-grade roads is summarized systematically. The running speed of each segment of the route is calculated by using the prediction model, and the coordinated evaluation of the running speed and the consistency evaluation between the running speed and the design speed are carried out by using the evaluation standard stipulated in the standard. To find out the lack of route design, to solve the problem, to improve the original design. Based on the project of S205 Fuquan tall building to Longshan section of Guizhou Provincial Road, this paper studies the upgrading technology and method of low-grade highway. It provides a way of thinking for upgrading and upgrading of low-grade roads, that is, to maximize the utilization of the original road resources, to evaluate the route by using the method of speed evaluation, and to improve the road sections with unreasonable design. To ensure the safety of driving, it can not only reduce the cost of the project, but also make the resources fully and reasonably utilized.
【学位授予单位】：长安大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：U418.8

【相似文献】