陕西省普通干线公路路基养护工程类别评价方法研究

发布时间：2018-01-20 02:13

本文关键词： 路基养护指标体系评价模型层次分析法　出处：《长安大学》2015年硕士论文　论文类型：学位论文

【摘要】：目前陕西省乃至全国针对路基养护的内容或者评价方法的研究还不充足,主要表现为:随着交通量的增长,车辆的种类不断变化,尤其是载重车辆的吨位已经提高很多,路基的典型病害形式和程度不断变化,现行路基养护评价规范的内容不能有效涵盖路基出现的实际问题,也缺乏对特定地区道路养护工作的适用性,加之目前养护偏路基路面主体,轻路侧绿化、路基过渡段等附属设施。因此,非常有必要对现有规范进行完善,制定一套系统、符合陕西省干线公路路基实际的评价方法,建立路基过渡段和路侧绿化现状的改造方案,这样就可以完成从养护工程类别调查评价到科学整治对策制定的跨越。本论文通过对陕西省普通干线公路路基现状的调查,总结了该地区路基典型病害的类型,主要有路肩损坏和不洁、边坡缺损、排水设施阻塞和缺损、挡土墙缺损、路基沉降、路基翻浆、路基防护缺损和路基水毁,同时分析了典型病害的成因;应用层次分析法AHP(Analytic Hierarchy Process),提出了陕西省地区普通干线公路路基养护工程类别评价对象和评价指标,评价对象为路肩、边坡、排水设施、挡土墙、路基沉降、路基翻浆、路基防护和路基水毁,评价指标为清洁度、缺损度、排水功能、沉降长度、翻浆变形、水毁长度,从而确立了陕西省普通干线公路路基养护工程类别评价方法;基于多元回归分析和数理统计建立了路基养护工程类别评价模型,同时采用修正的层次分析法AAHP(Amended Analytic Hierarchy Process),通过专家意见调查的方式,确定了各评价指标的权重和评价对象的权重,最终确立了陕西省普通干线公路路基养护工程类别评价模型;通过对陕西省普通干线公路实际调查结果,总结了目前陕西省普通干线公路路基过渡段和路侧绿化存在的问题,结合现有规范中的相关规定,整理出了相应的改造方案。此模型和改造方案可为陕西省公路养护工程设计及国道改造提供指导,同时可为全国公路路基养护工程及国道改造提供借鉴经验。研究成果可以指导陕西普通干线公路路基养护工作,为路基养护工作的安排提供参考和依据,从而提升普通干线公路的安全运营水平和综合服务能力。
[Abstract]:At present, the research on the content or evaluation method of roadbed maintenance in Shaanxi Province and even in the whole country is not enough. The main manifestation is: with the increase of traffic volume, the types of vehicles are constantly changing. Especially, the tonnage of heavy vehicles has been increased a lot, the form and degree of typical roadbed diseases are constantly changing, the content of current subgrade maintenance evaluation code can not effectively cover the actual problems of roadbed. There is also a lack of applicability for road maintenance in specific areas, coupled with the current maintenance of the main subgrade and pavement, light road side greening, roadbed transition section and other ancillary facilities. Therefore, it is very necessary to improve the existing specifications. Make a set of system, accord with the actual evaluation method of highway roadbed in Shaanxi Province, establish the reconstruction scheme of the transition section of roadbed and the present situation of roadside greening. In this way, we can complete the survey and evaluation of maintenance engineering category to the formulation of scientific countermeasures. This paper summarizes the typical disease types of roadbed in this area through the investigation of the current situation of roadbed of ordinary trunk highway in Shaanxi Province. There are mainly road shoulder damage and unclean, slope defect, drainage facilities obstruction and defect, retaining wall defect, subgrade settlement, embankment surfacing, roadbed protection defect and subgrade water destruction. At the same time, the causes of typical diseases are analyzed. The analytic hierarchy process (AHP(Analytic Hierarchy process) was applied. This paper puts forward the evaluation object and evaluation index of subgrade maintenance engineering of ordinary trunk highway in Shaanxi province. The evaluation objects are road shoulder, slope, drainage facilities, retaining wall, subgrade settlement and subgrade slurry. The evaluation indexes of subgrade protection and subgrade water damage are cleanliness, defectiveness, drainage function, settlement length, slurry deformation, water damage length, thus establishing the evaluation method of subgrade maintenance engineering in Shaanxi Province. Based on multiple regression analysis and mathematical statistics, the evaluation model of subgrade maintenance engineering category is established. At the same time, the modified Analytic hierarchy process (AAHP(Amended Analytic Hierarchy process) is adopted, and the way of expert opinion investigation is adopted. The weight of each evaluation index and the weight of the evaluation object are determined, and the evaluation model of the general trunk road subgrade maintenance project in Shaanxi Province is established. Through the actual investigation results of the ordinary trunk highway in Shaanxi Province, this paper summarizes the existing problems of roadbed transition section and roadside greening in Shaanxi Province, and combines with the relevant provisions in the existing codes. This model and reconstruction scheme can provide guidance for highway maintenance engineering design and national highway reconstruction in Shaanxi Province. At the same time, it can provide reference experience for national highway subgrade maintenance engineering and national highway reconstruction. The research results can guide the roadbed maintenance work of ordinary trunk highway in Shaanxi province, and provide reference and basis for the arrangement of roadbed maintenance work. In order to improve the general highway safety operation level and comprehensive service capacity.
【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】：U418.5

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