城市周边高速公路改扩建若干主要问题研究

发布时间：2018-10-05 12:07

【摘要】：随着社会经济的快速发展,产业分工在城市空间分部愈来愈趋于精细化,不同地区间的联系日趋紧密,部分既有高速公路通行能力和技术标准中的部分条款已经不能满足和适应现代交通需求,通行能力与交通需求的不适应性日渐凸显,这一矛盾在城市周边的高速公路中尤为突出。城镇化建设快速发展,城市人口不断膨胀,导致主城区规模不断扩大,建设初期的高速公路周边农村或城郊逐渐转变为城区,公众对高速公路功能的期望也越来越高,不仅希望高速公路提供快速交通服务,而且要为沿线两侧用地开发提供支持。因此,如何更好地解决城市周边高速公路改扩建中遇到的功能要求多样、技术规范不完善的难题,是公路建设者面临的主要挑战。本文以沈海高速深圳机场至荷坳高速公路(机荷高速)改扩建工程设计为依托,从设计控制分析入手,全面剖析了限制工程建设的控制因素,并按其对工程建设限制的严格程度进行了排序,提出了对各种控制条件的解决方案;结合项目特点,分析了机荷高速的功能需求,明确了功能定位,在此基础上,论证确定了该项目的主要技术标准。最后,分析了各种改扩建方式的优缺点和适用性,提出了原位拓宽改建的方案和实施要点。
[Abstract]:With the rapid development of social economy, the division of labor in urban space is becoming more and more refined, and the relationship between different regions is becoming closer and closer. Part of the existing expressway capacity and some of the technical standards have been unable to meet and adapt to modern traffic needs, traffic capacity and traffic demand has become increasingly inadaptable. This contradiction is especially prominent in the expressway around the city. With the rapid development of urbanization and the continuous expansion of urban population, the scale of the main urban area is constantly expanding, and the early stage of the construction of the expressway surrounding the countryside or the suburbs is gradually changing into the urban area, and the public expectations for the function of the expressway are also increasing. Not only hope highway to provide express transportation service, but also to provide support for land development along both sides of the route. Therefore, how to better solve the problems of various functional requirements and imperfect technical specifications encountered in the reconstruction and extension of the expressway around the city is the main challenge faced by highway builders. Based on the design of Shenhai High-speed Shenzhen Airport to He-ao Expressway (Machine load High-speed) reconstruction and extension project, starting with design control analysis, this paper comprehensively analyzes the control factors that restrict the construction of the project. According to the strict degree of the restriction of engineering construction, the paper puts forward the solution of various control conditions, analyzes the functional requirements of high speed machine load, clarifies the function orientation, and on this basis, analyzes the characteristics of the project. The main technical standard of the project is determined. Finally, the advantages and disadvantages and applicability of various reconstruction and extension methods are analyzed, and the scheme and implementation points of in-situ widening and reconstruction are put forward.
【学位授予单位】：长安大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：U418.8

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