高速公路罩面后路面使用性能变化规律研究

发布时间：2018-05-13 00:19

本文选题：罩面层 + 路面结构　；参考：《河北工业大学》2014年博士论文

【摘要】：本文以京秦高速罩面工程为依托，以高速公路罩面后路面使用性能变化规律为研究对象，分别从高速公路沥青路面结构形式调查及病害分析、高速公路罩面后结构状况检测方法、高速公路罩面后沥青路面检测数据特性、高速公路罩面后路面使用性能变化规律以及高速公路罩面后路面结构性能变化规律等方面展开研究。文章在深入研究分析国内外沥青路面罩面层有关资料和数据的基础上，借助多种路面性能指标检测仪器对京秦高速罩面后路面的状况进行检测，以集对论为基础，针对路面使用性能综合评价的复杂性，进行了同、异、反分析，提出了使评价结果更加客观科学的变权综合评价方法；引入模糊集理论，应用信息分配方法，构造并计算模糊随机风险的模型，对实测数据的变异性进行分析，并对各种罩面方式下路面的使用性能效果采取评价；运用马尔可夫预测模型，根据转移的系统状态来预测罩面后使用性能状态的变化规律，通过状态转移概率矩阵来反映各种随机因素对变化过程的影响程度，弥补了神经网络与灰色预测模型的局限性，便于在优化过程中得到更新且结果精度较高，在路面管理系统中具有较高的推广应用价值；借助通用软件ANSYS有限元程序，建立罩面后路面结构可靠度的三维有限元预测模型，分析研究沥青罩面层的应力应变以及新旧路面各结构层荷载应力应变对罩面后路面结构可靠度的影响规律，得出直接罩面、铣刨旧路面层后罩面和铣刨旧路面层及上基层后罩面三种典型的罩面方式下沥青路面使用性能的变化规律。研究成果对公路养护部门进行科学的路面养护管理决策，实现罩面层设计与养护一体化进程具有较大的现实意义。
[Abstract]:Based on the Beijing-Qinhuangdao high speed overlay project and taking the changing law of pavement performance after expressway cover as the research object, this paper investigates the structure form of expressway asphalt pavement and analyzes the disease respectively. The detection method of the structural condition behind the expressway overlay, the detection data characteristics of the asphalt pavement behind the expressway overlay, The change law of pavement performance after expressway overlay and the law of pavement structure performance after expressway overlay are studied. On the basis of deeply studying and analyzing the related data and data of asphalt pavement overlay at home and abroad, this paper, with the aid of many kinds of pavement performance index testing instruments, detects the condition of the pavement after the Beijing-Qin high speed overlay, which is based on the set pair theory. In view of the complexity of the comprehensive evaluation of pavement performance, this paper analyzes the same, different and inverse, and puts forward a comprehensive evaluation method of variable weight, which makes the evaluation results more objective and scientific, and introduces the theory of fuzzy set and applies the method of information distribution. The model of fuzzy random risk is constructed and calculated, the variability of measured data is analyzed, and the performance of pavement under various overlay modes is evaluated. Using Markov prediction model, according to the transition of the system state to predict the performance of the overlay state change law, through the state transition probability matrix to reflect the impact of various random factors on the process of change. It makes up for the limitation of neural network and grey prediction model, and is easy to be updated in the process of optimization, and the result accuracy is higher. It has a high value of popularization and application in pavement management system. With the help of the general software ANSYS finite element program, the 3D finite element prediction model of pavement structure reliability after covering is established. This paper analyzes and studies the influence of stress and strain of asphalt overlay and load stress and strain of each structural layer of new and old pavement on the reliability of pavement structure after covering, and obtains the direct overlay. The change of performance of asphalt pavement under three typical overlay modes of milling and planing old pavement layer and upper base layer. The research results have great practical significance for highway maintenance department to make scientific pavement maintenance management decision and realize the integration process of overlay design and maintenance.
【学位授予单位】：河北工业大学
【学位级别】：博士
【学位授予年份】：2014
【分类号】：U416.2

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