【摘要】：隨著社會(huì)經(jīng)濟(jì)的發(fā)展，原有的許多高速公路通行能力已逐漸不能滿足交通需求，高速公路的改擴(kuò)建是一種必然的發(fā)展趨勢。本文以連霍高速洛三靈段的改擴(kuò)建工程為依托，通過理論分析和工程應(yīng)用，對(duì)山嶺區(qū)改擴(kuò)建高速公路技術(shù)現(xiàn)狀進(jìn)行了綜合評(píng)價(jià)，并對(duì)改擴(kuò)建高速公路的路線優(yōu)化設(shè)計(jì)和上跨橋梁改造決策進(jìn)行了研究，主要成果如下： （1）對(duì)依托工程的現(xiàn)狀進(jìn)行了調(diào)查，，并對(duì)現(xiàn)狀高速公路的病害類型、病害原因等進(jìn)行了分析，為現(xiàn)狀高速公路技術(shù)性能評(píng)價(jià)和改擴(kuò)建設(shè)計(jì)與施工提供了基礎(chǔ)資料。 （2）提出了基于特爾菲-理想點(diǎn)法原理的高速路公路路面性能評(píng)價(jià)方法、基于《公路橋涵養(yǎng)護(hù)技術(shù)規(guī)范》的橋梁技術(shù)性能變權(quán)綜合評(píng)定法、基于功能重要度系數(shù)法和專家評(píng)定法的高速公路路基技術(shù)狀況評(píng)價(jià)方法，并以路基、路面、橋梁、隧道和沿線設(shè)施的技術(shù)狀況指數(shù)為評(píng)價(jià)指標(biāo)，建立了對(duì)高速公路技術(shù)狀況進(jìn)行綜合評(píng)定的灰色聚類評(píng)價(jià)模型。 （3）建議了改擴(kuò)建高速公路路線的平面線形擬合設(shè)計(jì)方法、縱斷面線形擬合設(shè)計(jì)方法及平縱面組合設(shè)計(jì)的原則，并以連霍高速洛三靈段改擴(kuò)建工程路線設(shè)計(jì)為例進(jìn)行了路線優(yōu)化處理，特別是對(duì)長大縱坡的優(yōu)化處理，研究成果對(duì)同類高速公路的改擴(kuò)建具有一定的參考價(jià)值。 （4）高速公路上跨橋梁改擴(kuò)建方案有整體拆除重建、部分拆除接長、只拆不建和老橋不動(dòng)四種。本文在對(duì)主線上跨橋梁改擴(kuò)建影響因素進(jìn)行分析后確定經(jīng)濟(jì)性、主線制約性、舊橋承載能力、舊橋正常使用性能及舊橋交通狀況五個(gè)評(píng)價(jià)指標(biāo)，通過層次分析法確定各評(píng)價(jià)指標(biāo)權(quán)重，然后通過模糊綜合評(píng)判法對(duì)各改擴(kuò)建方案進(jìn)行評(píng)價(jià)，選擇出最優(yōu)改擴(kuò)建方案；并通過岳溝上跨橋梁和破胡上跨橋梁改擴(kuò)建方案實(shí)例分析，驗(yàn)證了AHP-模糊綜合決策模型的可行性。
[Abstract]:With the development of social economy, the capacity of many freeway has been unable to meet the traffic demand gradually, and the reconstruction and expansion of expressway is an inevitable trend of development. Based on the reconstruction and extension project of Luo Sanling section of Lianghuo Expressway, through theoretical analysis and engineering application, this paper makes a comprehensive evaluation on the present technical situation of the reconstruction and extension of expressway in mountain area. The main results are as follows: (1) the status quo of the supporting engineering is investigated, and the disease types of the existing expressway are investigated. The causes of the disease are analyzed, which provides the basic data for the evaluation of the technical performance of the present freeway and the design and construction of the reconstruction and extension. (2) the evaluation method of highway pavement performance based on the principle of Delphi and ideal point method is put forward, and the comprehensive evaluation method of variable weight of bridge technical performance based on the Technical Specification for Highway Bridge and culvert maintenance is put forward. Based on the functional importance coefficient method and the expert evaluation method, the evaluation method of the technical condition of the expressway embankment is presented, and the technical condition index of the subgrade, pavement, bridge, tunnel and facilities along the highway is taken as the evaluation index. A grey cluster evaluation model for the comprehensive evaluation of the technical status of expressway is established. (3) the design method of plane alignment fitting, the design method of longitudinal section alignment fitting and the principle of combination design of plane and longitudinal plane are suggested. Taking the route design of the reconstruction and extension project of LuoSanling section of Lianghuo Expressway as an example, the route optimization treatment is carried out, especially for the long and long longitudinal slope. The research results have certain reference value for the reconstruction and extension of the similar expressway. (4) there are four types of reconstruction and reconstruction scheme of expressway span bridge, including partial demolition and connection, and only four kinds of old bridges are removed or not built. Based on the analysis of the factors affecting the reconstruction and expansion of the bridge on the main line, this paper determines five evaluation indexes: economy, constraint of the main line, carrying capacity of the old bridge, normal service performance of the old bridge and traffic condition of the old bridge. The weight of each evaluation index is determined by analytic hierarchy process (AHP), and then the fuzzy comprehensive evaluation method is used to evaluate the reconstruction and extension schemes, and the optimal reconstruction and extension scheme is selected. The feasibility of the AHP- fuzzy comprehensive decision model is verified by the analysis of the reconstruction and extension schemes of the bridge over the Yue gully and the bridge on the broken Hu.
【學(xué)位授予單位】：鄭州大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2014
【分類號(hào)】：U418.8;U412.366

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