公路改扩建工程互通式立体交叉改扩建方案设计

发布时间：2019-02-25 12:25

【摘要】：立交的功能是连接不同空间的道路,作为车辆转换的节点,是高速公路必不可少的一部分。目前,我国高速公路的设计已经趋于饱和,更多的是要进行改扩建,这也意味着要进行的改扩建的立交也比较多,但是我国而目前的设计规范更多的还是参照国外的技术标准,由于国情的不一致,因此参照国外的标准进行的改扩建后仍有部分存在不合理性。现阶段,为了迎合经济的需要,我国正在大力进行高速路改扩建。作为高速路不可或缺的立交也就成为了改扩建工作中的重中之重。立交的改扩建的影响因素也很多,比如环境、用地和造价等方面,因此研究立交改扩建方案是很有意义的。经过这么多年的发展,人们已经积累了丰富的立交建设经验,对互通式立交的建设提出了更高的要求。本文主要从互通式立交改扩建工程的方案设计原则和影响因素,及交通组织等方面进行了研究、分析,重点介绍了立交改扩建方案。首先,本文介绍了国内外的改扩建的研究现状,以此为基本出发点,引出了立交的现状及改扩建时的一些基本原则,其次,通过实地调查,对立交改扩建施工区内的交通特性及安全因素进行分析,通过分析互通改扩建作业区驾驶员、作业区和车辆运行特性,总结了改扩建交通组织的原则和方案,提出了作业时的一些安全建议。最后,结合工程实例分析,为互通式立交改扩建工程设计提供理论依据。
[Abstract]:The function of interchange is to connect the road with different space, as the node of vehicle conversion, it is an essential part of highway. At present, the design of freeway in our country has tended to be saturated, and it is more necessary to carry out the reconstruction and extension. This also means that there are more interchanges to be carried out. However, the current design specifications of our country are more likely to refer to the technical standards of foreign countries. Because of the inconsistency of the national conditions, there are still some irrationality after the reconstruction and extension according to the foreign standards. At present, in order to meet the needs of the economy, China is vigorously carrying out highway reconstruction and expansion. As an indispensable interchange of highway, it has become the most important in the reconstruction and extension work. There are also many factors affecting the construction and extension of interchange, such as environment, land use and cost, so it is very meaningful to study the plan of interchange reconstruction and extension. After so many years of development, people have accumulated rich experience in the construction of interchange, and put forward higher requirements for the construction of interchange. In this paper, the design principles and influencing factors of the interchange reconstruction and extension project are studied, and the traffic organization is analyzed, and the plan of the interchange reconstruction and extension is introduced emphatically. First of all, this paper introduces the domestic and foreign research status of reconstruction and extension, taking this as the basic starting point, leads to the status quo of interchange and some basic principles of reconstruction and extension, secondly, through field investigation, The traffic characteristics and safety factors in the construction area of interchange reconstruction and extension are analyzed. By analyzing the characteristics of drivers, operation areas and vehicles, the principles and schemes of traffic organization are summarized. Some safety suggestions are put forward. Finally, it provides theoretical basis for the design of interchange reconstruction and extension project.
【学位授予单位】：重庆交通大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：U418.8;U412.352.1

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