基于面层材料与结构的沥青路面抗车辙性能研究

发布时间：2018-01-11 13:00

本文关键词：基于面层材料与结构的沥青路面抗车辙性能研究　出处：《北京工业大学》2014年硕士论文　论文类型：学位论文

【摘要】：随着我国经济快速发展和综合国力不断提升，交通运输行业正处于飞速发展的黄金时期。在公路与城市道路建设中，沥青混合料被普遍用作路面面层材料。在沥青路面使用期内，由于车辆交通渠化及有效荷载的不断增加，路面出现了不同类型的车辙病害。针对这一问题，从影响沥青混合料抗车辙性能的因素出发，通过室内车辙试验，并结合工程实例验证，完成了沥青材料、级配类型及路面面层结构对沥青混合料抗车辙性能影响的研究。在沥青混合料配合比设计的基础上，为反映沥青材料、级配类型对沥青混合料动稳定度的影响，安排室内车辙试验。用单层车辙试验分析沥青材料、级配类型对沥青混合料动稳定度的影响；用双层车辙试验分析在沥青材料与级配类型不同组合模式下，不同面层组合方式对路面面层整体结构动稳定度的影响，同时，建立上、下面层动稳定度和路面面层整体结构动稳定度的数学回归方程，并对结论的合理性进行了灰色关联分析验证。通过灰色关联理论对连续型密级配热拌沥青混合料（AC）抗车辙影响因素进行灰色关联度分析和灰色关联熵分析，找出沥青混合料的抗车辙性能影响因素的关联次序，并建立核心影响因素和沥青混合料的动稳定度之间的数学回归方程，可为改善AC沥青混合料的配合比设计、评价及控制提供相关依据。最后结合试验路段，通过对路面抗车辙性能长期跟踪监测，针对几种典型路面面层结构，建立了车辙深度随时间变化的回归方程，对不同路面面层结构进行车辙深度评价，，优选出最佳组合的路面结构，为沥青路面施工和维护提供一定的指导参考。
[Abstract]:With the rapid development of China's economy and comprehensive national strength continued to improve, the transportation industry is in a golden period of rapid development. In the highway and city road construction, the asphalt mixture is generally used as pavement material. In the life of asphalt pavement, due to increasing traffic channelization and effective load, road surface the rut disease of different types. To solve this problem, starting from the factors influencing the anti rutting performance of asphalt mixture, through indoor rutting test, and combined with the engineering example, the asphalt material, gradation type and road surface layer structure of Rutting Potential Influence on asphalt mixture.
In the mix design on the basis of the asphalt mixture, in order to reflect the asphalt material, gradation of asphalt mixture dynamic stability, arrangement of rutting test. Analysis of asphalt materials with single rutting test of asphalt mixture gradation, dynamic stability; rutting test with double layer analysis in asphalt materials and gradation different types of combination mode, different combinations of surface layer of pavement structure dynamic stability of the overall effect, at the same time, set up the layer below the dynamic stability and pavement structure dynamic stability mathematical regression equation, and the conclusion of the rationality of the grey relational analysis verification.
By the grey correlation theory of continuous gradation asphalt mixture (AC) to analyze the impact factors of anti rutting grey correlation analysis and grey correlation entropy, correlation factors in order to find out the anti rutting performance of asphalt mixture, and the establishment of the core and the influencing factors of asphalt mixture dynamic stability between the mathematical regression equation for, with the improvement of the AC asphalt mixture ratio design, provide a basis for evaluation and control.
Finally, the test section, the pavement anti rutting performance of long-term follow-up monitoring, according to several typical pavement structure, the regression equation of time-varying rut depth is established, for rutting depth evaluation of different pavement structure, and select the best combination of pavement structure, provide a reference for asphalt pavement construction and maintenance.

【学位授予单位】：北京工业大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：U414;U416.217

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