湖南省干线公路沥青路面使用性能预测研究

发布时间：2018-12-08 19:34

【摘要】：随着经济的快速发展,湖南省国省干线公路建设也得到了蓬勃发展。随着交通荷载不断增加,干线公路路况逐年降低,近几年干线公路均进入大修时期。如何确定沥青路面后期的养护时机及养护资金的分配是公路管理部门最关心的问题。论文结合我省干线公路养护实际需求,主要做了以下研究:首先,以湖南省国省干线公路为对象,调查了沥青路面病害、排水设施、各地市养护状况,分析湖南省干线公路沥青路面病害产生的原因,根据近几年路面状况检测数据,结合现行养护规范,得到了养护时机的判定标准。其次,综合调查情况,考虑到各地气候因素及养护水平有较大差异,为准确反映沥青路面衰变规律,对湖南省的沥青路面路网区域进行了合理划分。结合路网分区情况进行检测数据整合、分析,考虑到路况数据库建立的时间较短,选取了适合的预测模型进行数据预测。最后,根据各区域沥青路面的衰变规律的分析,提出了适合湖南省各区域沥青路面典型结构的使用性能衰变方程;揭示了不同区域不同大修结构类型的各使用性能的衰变规律,通过对比不同模型的应用情况,验证了论文模型的可实用性。预测得到了各典型结构的养护时机,为全省养护资金的分配提供了理论依据。
[Abstract]:With the rapid development of economy, the construction of provincial trunk roads in Hunan Province has been booming. With the increasing of traffic load, the road condition of trunk highway is decreasing year by year. In recent years, trunk highway has entered the period of overhaul. How to determine the maintenance time of asphalt pavement and the distribution of maintenance funds is the most concerned problem of highway management department. According to the actual needs of the maintenance of trunk roads in Hunan Province, this paper mainly does the following research: firstly, taking the trunk highway of Hunan Province as the object, the paper investigates the asphalt pavement diseases, drainage facilities, and the maintenance situation of each prefecture and city. This paper analyzes the causes of asphalt pavement diseases on main highway in Hunan Province, and according to the detection data of pavement condition in recent years, combined with the current maintenance standard, obtains the criterion of maintenance opportunity. Secondly, in order to accurately reflect the law of asphalt pavement decay, taking into account the great difference of local climatic factors and maintenance level, this paper makes a reasonable division of the asphalt pavement road network area in Hunan Province. Considering the short time of setting up the road condition database, the suitable forecasting model is selected to forecast the data. Finally, according to the analysis of the decay law of the asphalt pavement in each region, the decay equation of the performance of the typical structure of the asphalt pavement in Hunan Province is put forward. The decay laws of different types of overhauled structures in different regions are revealed. The practicability of the model is verified by comparing the application of different models. The maintenance timing of each typical structure is predicted, which provides a theoretical basis for the distribution of maintenance funds in the province.
【学位授予单位】：中南林业科技大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：U416.217

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