沥青路面性能非线性模糊评价及预防性养护最佳时机研究

发布时间：2018-04-24 19:28

本文选题：沥青路面 + 预防性养护　；参考：《安徽建筑大学》2015年硕士论文

【摘要】：随着高速公路建设事业的快速发展,在继续不断建设高速公路的同时,已建成高速公路在投入使用过程中相继出现了不同程度的损坏,高速公路养护工作的形势愈加严峻。因此,就特别需要重视对高速公路进行预防性养护,以便缓解公路管理部门在路面养护工作中资金投入方面的压力。沥青路面预防性养护是指交通主管部门或者公路管理机构,为防止路面病害的出现或者轻微病害的恶化,采取不扰动原有路面结构、不提高路面结构承载能力的养护措施,从而达到延缓路面使用性能的衰减,降低路面在全部使用服务周期内的养护费用。本文从沥青路面预防性养护的特点出发,结合现有规范中沥青路面使用性能评价指标,提出了基于非线性模糊评价的沥青路面预防性养护使用性能综合评价模型,以及沥青路面预防性养护最佳时机的研究。主要研究成果如下:首先,介绍了目前国内外常用的沥青路面预防性养护措施,总结归纳了各预防性养护措施的优点及适用条件,为沥青路面预防性养护措施的选择提供了依据。同时,介绍了现有的预防性养护措施决策方法,例如:决策树和决策矩阵法、综合评判法、效益费用法和生命周期费用法,为路面养护管理部门进行预防性养护措施决策提供了理论方法。其次,引入了预防性养护路段的概念,根据路面使用性能和路面破损情况,运用有序聚类法和K-聚类法对养护路段进行划分归类,克服了传统路段划分方法局限性,以便精确的制定不同路段的预防性养护方案。然后,本文针对现有沥青路面预防性养护路面性能评价方法主观性强的不足,考虑了沥青路面使用性能对路面性能综合评价的层次性、模糊性以及评价活动本身的复杂性,提出了沥青路面预防性养护路面性能非线性模糊评价模型。选取损害状况指数、行驶质量指数、结构强度指数、横向力系数和车辙深度指数作为沥青路面的性能评价指标。运用区间数学和层次分析法确定各性能指标的区间权重,减少了主观因素的影响。引入能够反映某些性能指标对路面综合性能影响程度不同的突出影响系数,弥补了传统线性模糊评价的不足。该方法能够客观反映路段在路网中的位置,为路面管理部门制定预防性养护计划提供了依据。最后,预防性养护的经济性和有效性很大程度上取决于采取预防性养护措施的时机,本文重点研究沥青路面预防性养护最佳时机。生命周期费用模型是从路面的分析期或路面整个生命周期考虑,对每一种养护方案的当量平均年度费用进行比较,以此确定预防性养护最佳时机。本文通过对某工程实例进行分析,运用生命周期费用模型确定沥青路面预防性养护最佳时机。
[Abstract]:With the rapid development of expressway construction, the expressway has been damaged in different degrees in the process of putting into use, and the situation of highway maintenance is becoming more and more serious. Therefore, it is necessary to pay special attention to the preventive maintenance of highway in order to alleviate the pressure of the highway management department on the investment of funds in pavement maintenance. Preventive maintenance of asphalt pavement refers to the maintenance measures taken by the traffic department or highway management organization to prevent the occurrence of pavement diseases or the deterioration of minor diseases, without disturbing the existing pavement structure and not improving the bearing capacity of the pavement structure. In order to delay the attenuation of pavement performance and reduce the maintenance cost of pavement in the whole service cycle. Based on the characteristics of preventive maintenance of asphalt pavement and the performance evaluation index of asphalt pavement in existing specifications, a comprehensive evaluation model of preventive maintenance performance of asphalt pavement based on nonlinear fuzzy evaluation is put forward in this paper. And the best time of preventive maintenance of asphalt pavement. The main research results are as follows: firstly, the preventive maintenance measures of asphalt pavement used at home and abroad are introduced, and the advantages and applicable conditions of preventive maintenance measures are summarized. It provides a basis for the selection of preventive maintenance measures for asphalt pavement. At the same time, the existing decision-making methods of preventive conservation measures, such as decision tree and decision matrix method, comprehensive evaluation method, benefit cost method and life cycle cost method, are introduced. It provides a theoretical method for pavement maintenance management department to make decision on preventive maintenance measures. Secondly, the concept of preventive maintenance section is introduced. According to the pavement performance and pavement damage, orderly clustering method and K-cluster method are used to classify the maintenance road section, which overcomes the limitation of traditional road section partition method. In order to accurately develop different sections of preventive maintenance program. Then, in view of the subjectivity of the existing asphalt pavement preventive maintenance pavement performance evaluation methods, this paper considers the hierarchy, fuzziness and complexity of the evaluation activities of the asphalt pavement performance comprehensive evaluation to the pavement performance. A nonlinear fuzzy evaluation model of asphalt pavement preventive maintenance pavement performance is presented. The damage condition index, driving mass index, structural strength index, transverse force coefficient and rutting depth index are selected as the performance evaluation indexes of asphalt pavement. Interval mathematics and analytic hierarchy process (AHP) are used to determine the interval weight of each performance index, which reduces the influence of subjective factors. The prominent influence coefficient which can reflect the influence of some performance indexes on pavement comprehensive performance is introduced, which makes up for the deficiency of traditional linear fuzzy evaluation. The method can objectively reflect the position of road sections in the road network and provide a basis for road management departments to formulate preventive maintenance plans. Finally, the economy and effectiveness of preventive maintenance largely depend on the timing of preventive maintenance measures. This paper focuses on the best time of preventive maintenance of asphalt pavement. The life-cycle cost model is based on the analysis period of pavement or the whole life cycle of pavement, and compares the equivalent annual cost of each maintenance scheme to determine the best time of preventive maintenance. In this paper, a project example is analyzed and the best time for preventive maintenance of asphalt pavement is determined by using life cycle cost model.
【学位授予单位】：安徽建筑大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：U416.217;U418.6

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