道路几何设计部分设计指标适用性研究

发布时间：2018-10-11 19:26

【摘要】：我国过去十几年来在道路建设方面取得了巨大的发展。但随着社会和经济的快速发展,人们对于道路的需求已经不仅仅是停留在公路的通达性上,而对道路的保障能力、服务水平和景观性提出了更高的要求。然而我国道路的安全运营状况不容乐观,其中道路线形设计不合理是重要的原因之一。本文通过研究借鉴国外道路设计标准体系及其设计指标,从标准体系的宏观保障和具体的设计指标适用性两个角度出发,对我国的体系的发展和指标的改善提供一些建议。我国现行的行政体制、法律制度和土木工程中安全问题往往带来较大损失和恶劣影响等性质决定了工程设计的创新是有一定风险的,所以制度保障对道路的灵活性设计和方法创新有着巨大的意义。本文分别从法律、政府法规和行业标准三个方面分析了各国标准体系,研究各国标准从制定、颁布、管理,再到其法律效力、工程应用等方面与我国的不同,并对完善我国工程灵活和创新设计的制度保障提出了相关的建议。对于我国部分几何设计指标适用性不良的情况,本文通过查询诸多文献及专家调研,针对平、纵、横设计中的主要设计参数,选取亚洲和欧美主要发达国家的规范进行研究。本文从设计指标的设计理念、计算方法、取值应用等方面研究分析国外规范,并与我国标准和规范的做法进行比较,在结合我国实际情况研究后,总结得到相关的结论和建议。通过对设计指标的比较和分析,根据实际条件选取部分结论设计为两个对比实验方案,然后用Dicad和UC-win/Road建立道路3D模型,接着使用Forum8驾驶模拟器针对实验方案进行仿真模拟,通过模拟器输出的行车轨迹和车速的波动性来评价设计指标的适用性,从一定程度上对部分结论和建议的适用性予以验证。
[Abstract]:China has made great progress in road construction in the past ten years. However, with the rapid development of society and economy, the demand for roads has not only remained on the accessibility of roads, but also put forward higher requirements for the ability of road security, service level and landscape. However, the road safety operation in our country is not optimistic, and the unreasonable design of road alignment is one of the important reasons. Based on the study of the foreign road design standard system and its design index, this paper provides some suggestions for the development and improvement of the system in our country from the point of view of the macroscopic guarantee of the standard system and the applicability of the specific design index. The current administrative system, legal system and safety problems in civil engineering often bring great losses and adverse effects, which determine that the innovation of engineering design has certain risks. So the system guarantee has great significance to the flexibility design and method innovation of the road. This paper analyzes the standards system of different countries from the aspects of law, government regulations and industry standards, and studies the differences between national standards and our country in the aspects of formulation, promulgation, management, legal effect, engineering application, etc. Some suggestions are put forward to perfect the system of flexible and innovative design in China. With regard to the poor applicability of some geometric design indexes in China, this paper, by consulting many documents and experts, selects the specifications of the major developed countries in Asia, Europe and the United States to study the main design parameters in horizontal, longitudinal and horizontal design. In this paper, the design concept, calculation method and application of the design index are studied and analyzed in foreign countries, and compared with the practice of our country's standards and codes. After studying the actual situation in China, the author summarizes the relevant conclusions and suggestions. Based on the comparison and analysis of the design indexes, two contrasting experimental schemes are selected according to the actual conditions. Then the road 3D model is built with Dicad and UC-win/Road, and then the Forum8 driving simulator is used to simulate the experimental scheme. The applicability of the design index is evaluated by the vehicle trajectory and the fluctuation of the speed of the simulator, and the applicability of some conclusions and recommendations is verified to a certain extent.
【学位授予单位】：东南大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：U412.3

【参考文献】