沥青路面技术状况评价与分析

发布时间：2018-06-15 20:02

本文选题：车辙 + 平整度　；参考：《山东大学》2014年硕士论文

【摘要】：随着我国经济的快速、协调发展,交通量的不断增长,我国高速公路网趋于完善,但同时道路交通量日益增大,车辆迅速大型化且严重超载的现象也随之普遍出现,使目前我国的高速公路路面面临严峻的考验。很多高速公路沥青路面均呈现出一定的早期破坏,如裂缝、泛油、剥落、车辙等现象,有的高速公路甚至通车当年即发生了病害,正常维修期大大提前,直接影响了车辆的运行,也增大了养护管理资金的投入。针对这一现象,我国普遍采用公路路面技术状况定期检测的方式对公路路面产生的裂缝、泛油、剥落、车辙、沉陷、拥包、波浪等病害状况作出准确的评价,最终提出养护维修建议并确定处理方案。公路路面技术状况定期检测首先是对基本病害的调查检测,包括路面损坏、路面平整度、路面车辙、路面抗滑性能以及路面结构强度等指标,通常使用较为先进的自动化设备进行检测,比如路面综合数据智能检测车(可以同时检测路面损坏、路面平整度、路面车辙、路面构造深度等指标)、路面横向力系数测试车、落锤式弯沉仪以及探地雷达等。通过对以上各个指标检测数据的统计分析,根据分析结果计算相应的路面损坏状况指数PCI、路面行驶质量指数RQI、路面车辙深度指数RDI、路面抗滑性能指数SRI以及路面结构强度指数PASSI,然后结合《公路技术状况评定标准》的有关规定计算出PQI(Pavement Quality or Performance Index)——路面使用性能指数。根据相关规范的规定对路面综合使用性能进行评价,得出评定结论并给出相应的养护维修建议以及合理的修补方案。本文主要以对某段高速公路路面技术状况的现场检测为例,阐述整个检测过程及对检测结果的分析并提出了相应的处理方案。首先对该高速公路的路段进行了路面损坏、路面平整度、路面车辙和路面抗滑性能等指标的检测,经过对检测数据的分析,此路段路面损坏较为严重,各项指标检测结果均不够理想。考虑到其结构强度可能会受到影响,于是采用落锤式弯沉仪FWD对路面结构强度进行了检测。弯沉检测后发现部分路段结构强度较低,需大修,则又利用探地雷达检测路面结构损坏的具体情况以利于维修方案的制定。最后参照《公路养护技术规范》对路面的维修提出方案。公路路面技术状况评价与分析通过总结路面病害形成的内在、外在原因,如施工材料、温度、湿度、季节、交通量等等,根据病害程度提出有针对性的养护维修建议,确定需要采取的相应补救措施,从而保证了高速公路路面的通行质量。公路路面技术状况检测所得出的数据及计算所得结果也有利于对公路路面的设计,为路面施工等各方面提供有力的资料和经验,同时也有助于理论上的研究。
[Abstract]:With the rapid and coordinated development of our economy and the continuous growth of traffic volume, the highway network of our country tends to be perfect, but at the same time, the traffic volume is increasing day by day, and the phenomenon of rapid large-scale and serious overload of vehicles also appears generally. Make the highway pavement of our country face severe test at present. Many expressway asphalt pavements show certain early damage, such as cracks, oil flooding, spalling, rutting and so on. Some expressways even suffered from diseases in the year they were opened to traffic, and the normal maintenance period was greatly advanced. Directly affected the operation of the vehicle, but also increased the investment in maintenance and management funds. In view of this phenomenon, our country generally adopts the way of regular detection of highway pavement technical condition to make accurate evaluation of the cracks, flooding, spalling, rutting, subsidence, hugging, wave and other diseases of highway pavement. Finally put forward the maintenance and repair proposal and determine the treatment plan. The regular detection of highway pavement technical condition is firstly to investigate and detect the basic diseases, including pavement damage, pavement smoothness, pavement rutting, pavement anti-skid performance and pavement structural strength, etc. More advanced automated equipment is usually used to detect, such as intelligent road surface data detection vehicle (can simultaneously detect road surface damage, pavement smoothness, pavement rutting, pavement construction depth and other indicators, pavement lateral force coefficient test vehicle, etc.) Falling weight deflectometer and ground penetrating radar. Through the statistical analysis of the testing data of the above indicators, According to the analysis results, the corresponding pavement damage index PCI, pavement quality index RQI, pavement rutting depth index RDI, pavement skid resistance index Sri and pavement structural strength index PASSIwere calculated. The PQI Pavement Pavement quality or performance Index-pavement performance index is calculated. The comprehensive performance of pavement is evaluated according to the relevant specifications, and the evaluation conclusions are obtained, and the corresponding maintenance suggestions and reasonable repair schemes are given. This paper mainly takes the field detection of a section of expressway pavement technical condition as an example, expounds the whole detection process and the analysis of the test result, and puts forward the corresponding treatment scheme. First of all, the pavement damage, pavement smoothness, rutting and anti-skid performance of the expressway are tested. Through the analysis of the detection data, the road surface damage is serious in this section. The test results of each index are not satisfactory. Considering that the structural strength may be affected, FWD is used to detect the structural strength of pavement. After the deflection detection, it is found that some sections of the road are of low strength and need to be overhauled, and then the ground penetrating radar is used to detect the concrete condition of the pavement structure damage in order to facilitate the establishment of the maintenance scheme. Finally, with reference to the Technical Specification for Highway maintenance, a scheme for pavement maintenance is put forward. Evaluation and Analysis of Highway pavement Technical situation through summing up the internal and external causes of road surface diseases, such as construction materials, temperature, humidity, season, traffic volume and so on, the paper puts forward pertinent suggestions for maintenance and repair according to the degree of disease. The corresponding remedial measures should be taken to ensure the quality of the expressway pavement. The data obtained from the technical condition test of highway pavement and the calculated results are also beneficial to the design of highway pavement and provide the powerful data and experience for the pavement construction and so on. It is also helpful to the theoretical research at the same time.
【学位授予单位】：山东大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：U416.217

【参考文献】