北京市干线公路沥青路面病害分析及大修对策的研究

发布时间：2018-09-01 18:23

【摘要】：伴随交通量的迅速增长,车辆呈现大型、重型化,特别是交通超载、超限现象严重,尤其是干线公路在经受繁重的轴载负荷和密集交通量的反复作用下,路面质量发生很大损害。只有采用科学的方法对干线公路的使用品质做连续跟踪观察,及时的有针对性的采取大修对策,快速科学进行修复,才能始终使道路路面的使用品质保持在良好状态。通过对北京地区干线公路实际调查及实测交通资料的统计分析,总结出北京地区干线公路的轴载特性分布,并利用BISAR程序对路面大修结构进行模拟计算,计算沥青路面结构在不同轴载和不同胎压下的路面结构指数,最终分析得出交通组成对大修路面结构设计的影响。通过理论计算分析,研究铣刨前后原路面路表弯沉值与铣刨后路面当量回弹模量的变化规律,为大修路面结构方案的确定提供依据。通过对代表路段的路面技术状况和病害类型及分布特征的调查,分析总结出了北京地区干线公路的病害特征及产生原因,为大修方案的制定提出了要求。最后在上述研究的基础上,总结影响大修方案确定的因素,结合北京地区干线公路的等级、主导病害成因,交通组成特性等因素提出了适宜北京地区干线公路沥青路面大修的典型结构。同时通过对道路大修时路产废物材料再生利用技术的总结和比较,进一步分析适合北京地区干线公路的再生技术。
[Abstract]:With the rapid growth of traffic volume, vehicles appear large, heavy, especially traffic overload, the phenomenon of overload is serious, especially in the trunk highway under the heavy axle load and the repeated action of intensive traffic volume. There is great damage to the quality of the road surface. Only by using scientific methods to track and observe the use quality of trunk highway, timely and pertinently take overhaul countermeasures, and quickly and scientifically repair, can the quality of road surface be kept in good condition all the time. Based on the actual investigation of trunk roads in Beijing area and the statistical analysis of measured traffic data, this paper summarizes the axial load characteristic distribution of trunk highways in Beijing area, and simulates and calculates the pavement overhauling structure by using BISAR program. The index of asphalt pavement structure under different axle load and different tire pressure is calculated. Finally, the influence of traffic composition on pavement structure design of overhauled pavement is analyzed. Through theoretical calculation and analysis, the change law of the deflection value of the original pavement surface before and after milling and planing and the equivalent springback modulus of the pavement after milling and planing are studied, which provides the basis for the determination of the pavement structure scheme for heavy repair. Based on the investigation of pavement technical condition, disease types and distribution characteristics of representative road sections, this paper analyzes and sums up the disease characteristics and causes of trunk highways in Beijing area, and puts forward the requirements for the formulation of overhaul schemes. Finally, on the basis of the above research, the paper summarizes the factors that affect the determination of the overhaul plan, combined with the grade of the trunk highway in Beijing area, leading the cause of the disease. The typical structure suitable for the overhaul of asphalt pavement of trunk highway in Beijing area is put forward due to the characteristics of traffic composition and other factors. At the same time, through summing up and comparing the recycling technology of road waste materials during road overhaul, the paper further analyzes the regeneration technology suitable for trunk roads in Beijing area.
【学位授予单位】：北京工业大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：U416.217;U418.6

【共引文献】