本文選題：季凍區(qū)　切入點：公路路基　出處：《東北林業(yè)大學》2015年碩士論文

【摘要】：路基是公路的重要組成部分,道路的一些破壞很大程度上是由于路基的破壞反射到路面引起的。為了保證公路的正常使用性能,必須對路基進行周期性的、預防性的、科學合理的檢測評價并進行相應的維修養(yǎng)護,然而,國內(nèi)對于公路評價以及養(yǎng)護維修的研究資料主要集中在路面方面,對路基的研究還有待進一步深入。為了科學合理地評價季凍區(qū)公路路基所處的技術狀態(tài),給養(yǎng)護部門科學決策提供數(shù)據(jù)支持和參考建議,在典型的季凍區(qū)黑龍江省內(nèi)選取三條不同等級道路,對道路實際狀況進行了現(xiàn)場調(diào)查及觀測統(tǒng)計,結合季凍區(qū)公路的實際進行了路基使用狀況評價系統(tǒng)的研究。選取具有季凍區(qū)公路路基特點的路基排水、強度等級、凍脹等級、附屬物作為層次分析法的準則層指標,并確定了各準則層相對應的指標層評價指標,建立了季凍區(qū)路基使用狀況評價指標體系；選取粘質(zhì)土和粉質(zhì)土兩種具有代表性的季凍區(qū)路基土進行試驗,得到季凍區(qū)土基回彈模量與CBR之間轉換的關系式,并將其用于路基強度指標的評價,應用模糊綜合評價法與層次分析法相結合建立了季凍區(qū)公路路基使用狀況評價模型,首次確定了季凍區(qū)公路路基的路基排水和路基凍脹等各個指標層評價指標的分級建議值；以黑大一級路1km路段為例進行評價,結果為次等,基于VB語言建立季凍區(qū)公路路基使用狀況評價系統(tǒng)編程,引用實例證明其正確可應用,這一編程將研究成果產(chǎn)品化,簡單有效,填補了公路管理系統(tǒng)在路基使用狀況評價這一方面的空缺。
[Abstract]:Roadbed is an important part of highway.In order to ensure the normal service performance of highway, it is necessary to carry out periodic, preventive, scientific and reasonable inspection and evaluation of the roadbed and carry out the corresponding maintenance and maintenance.The research data of highway evaluation and maintenance are mainly focused on pavement, and the research of roadbed needs to be further studied.In order to scientifically and reasonably evaluate the technical condition of highway roadbed in seasonal frozen area, and to provide data support and reference suggestions for scientific decision of maintenance department, three different grade roads are selected in typical seasonal frozen region of Heilongjiang Province.The field investigation and observation statistics of the actual road condition are carried out, and the evaluation system of the roadbed using condition is studied in combination with the highway in the seasonal frozen area.Select subgrade drainage, intensity grade, frost heave grade and appendage as the criterion layer index of AHP, and determine the evaluation index of each criterion layer corresponding to each criterion layer, and select the subgrade drainage, intensity grade, frost heave grade and appendage which have the characteristic of highway roadbed in seasonal frozen area as the criterion layer index of AHP.The evaluation index system of subgrade using condition in seasonal frozen area is established, two typical subgrade soils, clay soil and silty soil, are selected for test, and the relationship between resilience modulus of soil foundation and CBR conversion in seasonal frozen area is obtained.It is applied to the evaluation of subgrade strength index, and the evaluation model of highway roadbed using condition in seasonal frozen area is established by using fuzzy comprehensive evaluation method and analytic hierarchy process (AHP).For the first time, the classification and suggestion values of evaluation indexes of subgrade drainage and roadbed frost heaving of highway subgrade in seasonal frozen area are determined, and the evaluation results of 1km section of Heida first class road are the second.Based on VB language, the evaluation system of highway roadbed in seasonal frozen area is programmed, and an example is cited to prove that the system can be applied correctly. This program will produce the research results and be simple and effective.Fill the gap of highway management system in the evaluation of roadbed use.
【學位授予單位】：東北林業(yè)大學
【學位級別】：碩士
【學位授予年份】：2015
【分類號】：U418.5

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本文編號：1703256