沥青路面性能衰变预测及养护维修决策方法研究

发布时间：2018-02-09 15:58

本文关键词： 高速公路沥青路面路面性能预测模型全寿命周期分析养护决策交通仿真优化实验路　出处：《北京工业大学》2015年博士论文　论文类型：学位论文

【摘要】：交通运输是社会和国民经济发展的决定性因素之一。经过30多年的高速发展和快速建设,我国道路交通基础设施建设成就举世瞩目。截至2013年底,我国高速公路里程达到10.44万km,普通公路里程达到435.62万km。道路交通建设取得的巨大成就不仅为广大居民提供了方便、快捷、安全、舒适的出行条件,同时也为经济建设的快速发展提供了运输保障,极大地促进了我国社会和经济的发展。目前,在持续进行交通基础设施建设的同时,道路交通基础设施的养护维修和管理工作已经成为我国交通运输事业的工作重点。2012年,在普通公路和高速公路投资增长率低于1%甚至负增长的同时,国、省干道公路改造投资增长率高达5.9%。2013年我国公路通车总里程达到450多万公里,公路养护历程达到425.14万公里,每年的路面养护率达到97%以上,国、省干道大、中修比例达到15%以上,用于国、省干道道路改造的投资以每年6%的速度增长,我国每年用于道路设施各类养护和改造的投资将达到5000亿元以上。因此,高效、科学的道路交通基础设施养护维修和管理事关今后我国道路交通建设的建设水平和效益,对于我国的经济和社会发展具有重要意义。经过几十年的建设,我国在道路设施建设方面形成了完善的技术体系和标准体系,在道路养护维修方面,也形成了比较系统的技术和规范体系,但由于我国在道路养护管理方面的历史较短,在道路路面养护维修管理方面上存在诸多问题。这些问题表现在:第一,我国幅员广大,不同地区有不同的特点,在路面性能评价、路面性能预测方面无法用一个统一的模式予以覆盖。第二,我国的路面养护维修偏重于技术、经济性的考虑,与目前低碳、环保可持续发展的要求不适应,一些不科学的养护方案造成了一定的交通和环境问题。第三,我国尚未形成规范的路面养护维修设计规范,养护维修方案决策在理论和实用上均处于摸索阶段。最后,不同地区、不同道路的环境和交通条件不同,路面所处的工作状态不同,如何准确掌握道路路面结构工作状态,进而采用具有针对性的路面结构和养护维修方案是实际工作遇到的难点。本文以北京市高速公路沥青路面的养护维修和运营管理为对象,针对我国目前高速公路养护维修和管理工作中存在的问题,在总结我国目前公路路面养护决策机制、养护工作特点的基础上,对高速公路养护决策过程中涉及的路面使用性能评价、路面性能衰变预测、养护方案决策及其优化等问题进行全面的研究。同时,结合道路结构内部工作状态检测试验路段,研究路面结构内部温度和应变的工作状况和变化规律,对北京市高速公路破坏机理进行分析,提出北京市高速公路养护维修的典型结构。本文主要内容包括:(1)对北京市高速公路养护工作的历史和现状进行全面的调查和分析,在研究当前高速公路养护决策的方式和特点以及国家相关技术标准基础上,提出了高速公路路面技术状况指标的细化方法。结果表明,该细化指标较目前的评价指标更加符合道路路面实际情况,可以更好的指导路面养护决策工作。(2)通过对北京市高速公路路面多年的路面性能检测数据以及大修检测数据的分析,提出了高速公路路面各项技术指标的预测模型。本文的模型考虑了高速公路实际状态检测评定情况和不考虑养护维修情况的衰变趋势两种情况,可分别用于路面技术状况的评比和路面养护规划方案决策分析。应用结果表明,本文提出的预测模型具有较好的精度和实用性,为养护维修决策提供了理论指导。(3)以全寿命周期理论为指导,考虑高速公路路面养护维修中产生的建设成本、交通影响成本、环境影响成本等,提出了多目标的高速公路养护维修决策模型和方法,使高速公路的养护维修工作达到经济成本、交通影响、环境影响综合效益最优的目标,提升了高速公路路面养护维修决策的科学水平。(4)结合北京市高速公路路面养护工程修建的实验路,埋设测量环境参数、力学参数的监测设备,得出了高速公路路面结构内部的应变、压力、温度等的变化情况。在此基础上,定性解释了高速公路路面车辙、裂缝等病害的发生机理,并相应提出了北京市高速公路路面养护维修典型结构和方法。本文研究中,理论研究与实际应用相结合,提出的高速公路路面性能评价细化指标、衰变预测模型、多目标养护维修决策为高速公路路面养护维修决策提供了理论支持,所提出的高速公路路面养护维修典型结构和方法可有效指导高速公路路面养护的实际工作。
[Abstract]:Transportation is one of the decisive factors in the social and economic development. After the rapid development and rapid construction of more than 30 years, China's road traffic infrastructure construction achievements. By the end of 2013, China's highway mileage reached 104 thousand and 400 km, not only for the residents to provide convenient, achieve the great achievements of 4 million 356 thousand and 200 km. road traffic construction in general highway mileage is fast, safe, comfortable travel conditions, while also providing transportation support for the rapid development of economic construction, which greatly promoted the development of society and economy in China. At present, in the ongoing traffic infrastructure construction, road traffic infrastructure maintenance and management work has become the work of transportation our focus in.2012 years, ordinary roads and highways investment growth rate is less than 1% or even negative growth at the same time, country, provincial roads. Road reconstruction investment growth rate of up to 5.9%.2013 years of China's highway traffic mileage reached about 4500000 kilometers, highway maintenance process reached 4 million 251 thousand and 400 kilometers, road maintenance annual rate of more than 97%, country, provincial roads, repair proportion reached more than 15%, for the country, provincial roads road transformation investment grew at an annual rate of 6% in our country every year for various maintenance and renovation of the road infrastructure investment will reach 500 billion yuan. Therefore, efficient, scientific road infrastructure maintenance and management related to the future of China's road construction construction level and efficiency, has important significance for China's economic and social development. After decades of construction, I the formation of a perfect technical system and standard system in road construction, the road maintenance, but also the formation of technology and standard system, but because of our country In the road maintenance management has a relatively short history, there are many problems in road pavement maintenance management. These problems in the following aspects: first, China's vast territory, different regions have different characteristics, in the evaluation of pavement performance, pavement performance prediction can not be covered by a unified model. Second, pavement maintenance maintenance of our country emphasis on technology, economic considerations, and the current low carbon, environmental protection and sustainable development requirements, some unscientific maintenance scheme caused by traffic and environmental problems. In third, China is still not a standardized pavement design specification, maintenance decision of maintenance are in the exploratory stage in theory and practice. Finally, different regions, different road environment and traffic conditions, road where the working condition is different, how to grasp the road pavement structure into the working state accurately. While the use of targeted pavement structures and maintenance scheme is difficult in practical work encountered. This paper takes Beijing city expressway asphalt pavement maintenance and operation management as the object, in view of the existing highway maintenance and management work in our country at present, in the summary of China's current highway pavement maintenance decision-making mechanism, basic maintenance work on the features of the pavement performance evaluation of maintenance decision making, the decay of pavement performance prediction, to conduct a comprehensive study on the maintenance scheme decision and optimization problems. At the same time, combined with the status of internal road structure test section of pavement structural strain and temperature of working condition and regularity of Beijing Expressway the failure mechanism is analyzed, the typical structure of Beijing highway maintenance. The main contents include: (1) the investigation and comprehensive analysis of the history and current situation of Beijing highway maintenance work, in the current study of expressway maintenance decision-making methods and characteristics as well as the relevant national technical standards based on the proposed refinement method of technical condition indicators of expressway pavement. The results show that the more detailed index evaluation index is consistent with the actual situation road pavement, pavement maintenance decision guidance work can be better. (2) through the pavement performance test of Beijing city highway pavement years of data and analysis overhaul test data, a prediction model of the technical indicators of freeway pavement. The model takes into account the actual state and does not consider the detection and evaluation of highway maintenance decay trend of the two cases, can be used for decision-making appraisal and pavement maintenance plan of pavement technology Analysis. The application results show that the prediction model proposed in this paper is accurate and practical, provides a theoretical guidance for maintenance decision. (3) based on the life cycle theory, consider highway pavement maintenance construction cost, traffic impact cost, environmental impact cost, put forward highway maintenance the maintenance decision model and multi-objective approach, the highway maintenance work to achieve economic cost, traffic impact, target the optimal comprehensive environmental impact, enhance the scientific level of expressway pavement maintenance decision. (4) according to the experimental road pavement maintenance engineering of Beijing city construction, laying measuring environmental parameters, monitoring equipment the mechanical parameters of the strain, the internal pressure of highway pavement structure, temperature and so on. On this basis, the interpretation of the highway The occurrence mechanism of rut, crack and so on, and puts forward the Beijing City Expressway Pavement Typical Structure and method. In this paper, combining theoretical research and practical application, the highway pavement performance evaluation index of refinement, decay prediction model, maintenance decision of multi-objective maintenance provides theoretical support for the decision-making of highway maintenance pavement maintenance, the maintenance of Highway Pavement Typical Structure and method can effectively guide the practical work of expressway pavement maintenance.

【学位授予单位】：北京工业大学
【学位级别】：博士
【学位授予年份】：2015
【分类号】：U416.217;U418.6

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