重载条件下水泥混凝土路面养护技术研究

发布时间：2019-01-22 20:31

【摘要】：随着我国经济社会及交通事业的不断发展,水泥混凝土路面由于其强度高、稳定性好、维修养护费用少的优点,在我国公路及城市道路中的应用也越来越广泛。同时,为适应经济发展需求,我国公路交通荷载发展也逐步转向重型化,而且车辆超载问题也日益突出,最终导致了水泥混凝土路面在其设计使用周期内出现各种破损及病害,使路面使用时间往往达不到路面结构的设计使用寿命。因此,在水泥混凝土路面的设计使用寿命内加强对路面结构的养护维修就显得尤为重要。本文在介绍水泥混凝土路面预防性养护及评价技术的基础上,对重载条件下水泥路面的主要破坏形式及病害产生原因进行分析,提出了水泥混凝土路面病害的预防及养护技术措施。依托对四川省宜珙路,论文对该路段所出现的病害形式、病害严重程度、破损板面板底脱空情况及病害成因进行了现场调查分析,采用有限元方法定量分析了各种病害原因对水泥混凝土路面结构的影响规律,针对性地提出了宜珙路水泥混凝土路面养护的总体实施方案,采用全厚式现浇修补技术方案对路面结构进行养护修复。在大量调研分析的基础上,本文最后从水泥混凝土路面的结构设计、路面材料、工程施工以及养护修复等几个方面总结了四川省新建水泥混凝土路面的设计与修筑策略,为水泥混凝土路面的设计与养护提供借鉴,对重载条件下的水泥混凝土路面养护,提高水泥路面的使用寿命具有重要的现实意义。
[Abstract]:With the development of economy, society and transportation, cement concrete pavement is more and more widely used in our country because of its advantages of high strength, good stability and low maintenance cost. At the same time, in order to meet the needs of economic development, the development of highway traffic load in China has gradually turned to heavy-duty, and the problem of vehicle overload is becoming increasingly prominent, which eventually leads to various damage and diseases of cement concrete pavement in its design life cycle. The pavement service time is often not up to the design life of pavement structure. Therefore, it is very important to strengthen the maintenance and repair of pavement structure during the design life of cement concrete pavement. Based on the introduction of preventive maintenance and evaluation technology of cement concrete pavement, this paper analyzes the main failure forms and causes of diseases of cement pavement under heavy load. The technical measures for prevention and maintenance of cement concrete pavement diseases are put forward. Based on the investigation and analysis of the disease form, the severity of the disease, the void condition of the damaged panel bottom and the cause of the disease in Yigong Road, Sichuan Province, the paper makes a field investigation and analysis. The influence of various diseases on cement concrete pavement structure is analyzed quantitatively by finite element method, and the overall maintenance scheme of Yigong road cement concrete pavement is put forward. The full-thickness cast-in-place repair technique was used to repair the pavement structure. On the basis of a great deal of investigation and analysis, this paper summarizes the design and construction strategy of the new cement concrete pavement in Sichuan Province from the aspects of structural design, pavement materials, engineering construction and maintenance and repair, etc. It provides reference for the design and maintenance of cement concrete pavement and has important practical significance for the maintenance of cement concrete pavement under heavy load condition and for improving the service life of cement concrete pavement.
【学位授予单位】：山东大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：U418.6

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