横向力系数测试系统在公路工程检测中的应用

发布时间：2018-09-10 21:06

【摘要】：针对我国车多、路多、交通事故多的特点,为了减少交通事故的发生,良好的路面抗滑性能是保证行车安全的重要保障。对于新建或者改建的道路,不仅要保证一定的通行能力这一基本要求,更重要的是保证路面有良好的抗滑性能。目前,路面的抗滑性能评价指标之一是路面摩擦系数,因此研究路面摩擦系数的检测方法并准确、高效和评价出路面的摩擦系数显得至关重要。针对目前常用的路面抗滑性能的检测方法和检测设备等相关资料进行了收集、整理,简单介绍了这些检测设备的工作原理和检测方法并分析了其优缺点。本文研究的主要对象是SFC-2007型路面横向力系数测试车(检测值为:SFC),首先对其进行了一个详细的介绍,在充分了解和熟练运用该设备的基础上,以广西、湖南高速公路为依托进行了重复性试验,并分析了该设备测试数据的分布情况。然后与摆式摩擦仪进行对比分析,得出其两者之间的相关关系。对路面抗滑机理生成进行了简单的分析,重点从橡胶材料的本身特性和轮胎与路面之间的相互作用两方面研究。在了解机理生成的基础上,分别研究了其各影响因素,主要从测试轮胎、测试环境(外界条件)等方面入手。最后通过灰色理论系统分析用SFC-2007型横向力系数测试车测出的横向力系数SFC值与路面平整度、车辙及裂缝之间的关联度,通过关联度的大小来确定模型的建立,最后建立出横向力系数与平整度、车辙之间的关系模型。
[Abstract]:In order to reduce the occurrence of traffic accidents, good anti-skid performance is an important guarantee to ensure the safety of traffic in view of the characteristics of more cars, more roads and more traffic accidents in our country. For the newly built or rebuilt roads, it is necessary not only to ensure the basic requirement of certain capacity, but also to ensure that the pavement has good anti-skid performance. At present, one of the evaluation indexes of pavement anti-skid performance is pavement friction coefficient, so it is very important to study the detection method of pavement friction coefficient and to evaluate the friction coefficient efficiently and efficiently. This paper collects and arranges the relevant data of pavement anti-skid performance detection method and testing equipment, introduces the working principle and detection method of these testing equipments, and analyzes their advantages and disadvantages. The main research object of this paper is the SFC-2007 type pavement transverse force coefficient test vehicle (the detected value is the SFC-2007). Firstly, it is introduced in detail, on the basis of fully understanding and skillfully using the equipment, Guangxi, Repeated tests were carried out on Hunan Expressway, and the distribution of test data was analyzed. Then compared with the pendulum friction instrument, the correlation between them is obtained. The formation of anti-skid mechanism of pavement is simply analyzed, especially from the characteristics of rubber material and the interaction between tire and pavement. On the basis of understanding the formation of mechanism, the influencing factors are studied, mainly from the aspects of tire test, test environment (external conditions) and so on. Finally, the grey theory is used to analyze the correlation degree between the SFC value of the transverse force coefficient measured by SFC-2007 and the pavement smoothness, the rut and the crack, and the establishment of the model is determined by the magnitude of the correlation degree. Finally, the relationship model of transverse force coefficient, smoothness and rutting is established.
【学位授予单位】：长沙理工大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：U416.03

【参考文献】