河北省国道107北互通连接线路面检测评估与处治研究

发布时间：2018-04-26 02:04

本文选题：道路工程 + 重载路面　；参考：《长安大学》2015年硕士论文

【摘要】：交通运输行业发展迅速,公路在经济发展中承担的角色越来越重要,公路路面作用的荷载亦逐渐增大,在重载作用下的破坏现象增多,现有道路设计指标及参数不适宜重载路面设计。目前,对于路面的检测、病害处治等虽有一定研究,但对于重载路面的检测评估、养护方案等相关研究不全面,并且重载引起的路面病害原因分析不明确。针对以上问题,本文依托河北省国道107北互通连接线,全面调查了路面状况和病害特征,研究了基于结构组合特性的重载沥青路面结构适应性,提出了河北省国道107北互通连接线路面病害处治和养护方案,对重载路面的检测评估与病害处治具有重要意义。主要研究内容包括:(1)通过路面钻芯和刨面分析,确定了路面的破损状况及病害特征,基于钻芯试样的力学性能检测、矿料级配检测和沥青性质检测,测试和评价了沥青面层基本性能,全面分析了河北省国道107北互通连接线沥青路面病害原因。(2)全面分析了重载车辆轴载特征参数与分布,建立了超载作用下的沥青路面数值模型,系统研究了超载作用下路表弯沉响应、路面结构层拉应力响应、压应力响应和剪应力响应,评价了超载作用下沥青路面疲劳寿命,针对结构参数对沥青路面结构力学行为影响进行了研究,基于结构特性对重载沥青路面损坏原因进行了分析。(3)依据沥青路面病害处理方案,对河北省国道107互通连接线路面养护方案进行了比选与推荐,规划了养护方案,提出了河北省重载干线公路沥青路面结构建议。论文研究内容对于确定重载干线公路路面破损原因和增强路面养护方案的科学性具有重要的现实意义。
[Abstract]:With the rapid development of transportation industry, the role of highway in economic development is becoming more and more important, and the load of road surface is gradually increasing, and the damage phenomenon under heavy load is increasing. The existing road design indexes and parameters are not suitable for heavy load pavement design. At present, although there is some research on pavement detection, disease treatment and so on, the research on the detection and evaluation of heavy load pavement, maintenance scheme and so on is not comprehensive, and the cause analysis of pavement disease caused by heavy load is not clear. In view of the above problems, this paper, relying on the connection line of Hebei Province National Road 107, comprehensively investigated the pavement condition and disease characteristics, and studied the structural adaptability of heavy duty asphalt pavement based on structural combination characteristics. This paper puts forward the treatment and maintenance scheme of pavement diseases on the North Connect Line 107 National Road in Hebei Province, which is of great significance to the detection, evaluation and treatment of heavy load pavement. The main research contents include: (1) through pavement core drilling and plane surface analysis, the damage status and disease characteristics of pavement are determined. Based on the testing of mechanical properties of drill core samples, mineral aggregate gradation test and asphalt property test, The basic performance of asphalt surface layer is tested and evaluated, and the cause of asphalt pavement disease on the North Connect Line 107 of Hebei Province is analyzed. (2) the characteristic parameters and distribution of axle load of heavy duty vehicle are analyzed. The numerical model of asphalt pavement under overload is established, and the deflection response of pavement surface, tensile stress response, compressive stress response and shear stress response of pavement structure under overload action are systematically studied, and the fatigue life of asphalt pavement under overload action is evaluated. The influence of structural parameters on the mechanical behavior of asphalt pavement structure is studied. Based on the structural characteristics, the causes of heavy duty asphalt pavement damage are analyzed. This paper compares and recommends the pavement maintenance scheme of the 107 national highway connecting line in Hebei Province, plans the maintenance scheme, and puts forward some suggestions on the asphalt pavement structure of Hebei heavy haul trunk highway. The research content of this paper has important practical significance for determining the causes of pavement breakage and enhancing the scientific nature of pavement maintenance scheme for heavy-haul trunk highway.
【学位授予单位】：长安大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：U418.6

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