吉林省高等级道路结构组合研究

发布时间：2018-09-09 12:52

【摘要】：近十几年来,我国高等级公路在建设方面取得了巨大的成就,但是,随着交通量的不断增长和超载现象的明显增大,在运行的高速公路沥青路面结构也发生了一些严重的早期损坏现象,本文通过对国内外的现状研究,根据吉林省的气候特点和实际情况,,力求为吉林省探讨出一种能适应吉林省的合理的并且具有良好的水稳定性能的道路结构组合形式。本文通过室内配合比、混合料性能参数设计、路面结构分析与结构组合,大量的试验数据,主要针对以下四个方面进行研究；(1)吉林省道路建筑原材料的调研与测试分析(2)基层底基层材料配比组成与力学参数的试验研究(3)路面结构组合优化与设计方法(4)路面结构、材料施工工艺与质量控制通过以上研究分析,得出五点结论：(1)为了改善基层材料的抗裂性能,应在满足强度要求的条件下,尽量减少细料的含量；(2)水泥稳定碎石的抗压强度和劈裂强度都随着龄期的增长而增长;(3)干缩应变随着混合料中失水率的增大而逐渐增大,直到最大失水率时将达到最大值；(4)双层体系在半刚性路面结构的应用中具有局限性：(5)薄面层对半刚性基层的受力会产生不利影响,较厚的面层能有效地改善基层的受力状况。
[Abstract]:In the past ten years, China has made great achievements in the construction of high-grade highways. However, with the continuous growth of traffic volume and the obvious increase of overload phenomenon, There are some serious early damage phenomena in the asphalt pavement structure of the expressway. This paper studies the present situation of the pavement at home and abroad. According to the climate characteristics and actual conditions of Jilin Province, this paper tries to explore a reasonable road structure combination form which can adapt to Jilin Province and has good water stability. In this paper, through indoor mix ratio, mixture performance parameters design, pavement structure analysis and structure combination, a large number of test data, mainly for the following four aspects of research; (1) investigation and test analysis of raw materials for road construction in Jilin province (2) experimental study on composition and mechanical parameters of base materials (3) optimization and design method of pavement structure combination (4) pavement structure, Through the above research and analysis of material construction technology and quality control, five conclusions are drawn: (1) in order to improve the crack resistance of the base material, the content of fine material should be reduced as far as possible under the condition of meeting the requirements of strength; (2) the compressive strength and the splitting strength of the cement stabilized macadam increase with the increase of age, (3) the dry shrinkage strain increases with the increase of the water loss rate of the mixture, until the maximum water loss rate will be reached. (4) double layer system has limitation in the application of semi-rigid pavement structure: (5) thin surface layer will have adverse effect on the force of semi-rigid base course, and thicker surface layer can effectively improve the stress condition of base course.
【学位授予单位】：大连海事大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：U416.2

【相似文献】