高速公路沥青路面预防性养护时机研究

发布时间：2018-05-09 10:17

本文选题：沥青路面 + 预防性养护　；参考：《兰州交通大学》2014年硕士论文

【摘要】：高速公路沥青路面在使用的过程中，，由于受到行车荷载和环境因素的共同作用，其使用性能和结构性能将逐年下降，因此，需要对路面采取及时有效的预防性养护措施，从而使路面的使用性能和服务水平能够处于一个良好的状态。随着我国公路事业进入以发展高等级公路建设为主的新时期，高速公路的养护与管理面临着新的挑战。在未来的一段时间，将有越来越多的高速公路迎来周期性的养护，公路养护管理部门将要面临公路集中养护的压力。为了提高养护水平，以及缓解养护任务的资金压力，研究何时进行何种预防性养护有着重要的现实意义。首先，本文在查阅大量相关文献的基础上，通过对现行公路沥青路面使用性能的评价指标进行详细分析，将结构强度系数作为预防性养护的控制指标，并将车辙深度指数纳入单项指标的评价中，建立出适用于高速公路沥青路面使用性能的评价指标体系。同时，总结了国内外常用路面使用性能预测模型的特点，再结合我国路面使用性能预测现状，构建出适应性较好的灰色马尔可夫预测模型，并利用其对高速公路沥青路面使用性能进行预测。其次，对国内常用的沥青路面预防性养护技术以及它们所具有的特点进行了详细分析，并归类出各种预防性养护措施的适用条件，进一步对公路沥青路面的病害现象与各种养护技术之间的联系进行了讨论。进而，在遵循预防性养护时机的选择原则为前提条件下，以效益费用分析法为基础，运用经济分析决策法对预防性养护时机进行确定，该方法可通过决策指标的计算结果，科学地选择出养护时机最佳的方案。最后，以某高速公路沥青路面养护工程的实测数据为基础，对该路面的各项使用性能指标进行了预测分析，并且确定出了最佳的预防性养护时机，从而验证了本文所建立的使用性能评价指标体系、使用性能预测模型以及预防性养护时机确定方法的可行性和有效性。
[Abstract]:In the process of using asphalt pavement of expressway, due to the joint action of driving load and environmental factors, its performance and structural performance will decline year by year. Therefore, it is necessary to take timely and effective preventive maintenance measures for the pavement. So that the pavement performance and service level can be in a good state. With the development of highway construction in China, highway maintenance and management are facing new challenges. In the future, more and more highways will meet the periodical maintenance, and the highway maintenance management department will be faced with the pressure of centralized maintenance. In order to improve the maintenance level and relieve the financial pressure of the maintenance task, it is of great practical significance to study when and which preventive maintenance should be carried out. First of all, on the basis of consulting a large number of related documents, this paper analyzes in detail the evaluation indexes of the performance of the existing highway asphalt pavement, and takes the structural strength coefficient as the control index of preventive maintenance. The rutting depth index is included in the evaluation of single index, and the evaluation index system suitable for the performance of expressway asphalt pavement is established. At the same time, the characteristics of common pavement performance prediction models at home and abroad are summarized, and then the grey Markov prediction model with good adaptability is constructed according to the present situation of pavement performance prediction in China. It is used to predict the performance of highway asphalt pavement. Secondly, the preventive maintenance technology of asphalt pavement and its characteristics are analyzed in detail, and the applicable conditions of various preventive maintenance measures are classified. The relationship between the disease phenomenon of highway asphalt pavement and various maintenance techniques is discussed. Furthermore, under the precondition of choosing preventive maintenance opportunity, based on the benefit and cost analysis method, the economic analysis decision method is used to determine the preventive maintenance opportunity. The method can be used to calculate the result of the decision-making index. Scientific choice of the best maintenance time program. Finally, based on the measured data of a highway asphalt pavement maintenance project, the performance indexes of the pavement are forecasted and analyzed, and the best preventive maintenance time is determined. Thus, the feasibility and effectiveness of the evaluation index system, the performance prediction model and the preventive maintenance timing determination method established in this paper are verified.
【学位授予单位】：兰州交通大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：U416.217;U418.6

【参考文献】