本文選題：隧道工程 + 橋梁工程　； 參考：《中南大學(xué)》2014年碩士論文

【摘要】：摘要：城際鐵路線路通過城市中心地區(qū)時(shí),常常會(huì)遇到江河湖海等水域的阻攔,或與已有的交通線路、建構(gòu)筑物發(fā)生交叉重疊,選擇橋梁還是隧道是一個(gè)十分復(fù)雜而有意義的問題,目前尚未有較好的方案優(yōu)選的評(píng)價(jià)方法和模型。本文結(jié)合鐵道部課題“長株潭城際鐵路湘江隧道施工關(guān)鍵技術(shù)研究”(2011G013-C),針對(duì)長株潭城際躍進(jìn)湖大橋改隧道工程,對(duì)城市中心地區(qū)跨水域橋隧方案優(yōu)選的綜合評(píng)價(jià)進(jìn)行了初步研究,主要研究內(nèi)容及成果如下： (1)通過比較分析各種評(píng)價(jià)方法的優(yōu)缺點(diǎn),結(jié)合橋隧方案優(yōu)選的特點(diǎn),確定采用層次分析法和模糊綜合評(píng)價(jià)法相結(jié)合的模糊層次綜合評(píng)價(jià)法作為橋隧方案優(yōu)選評(píng)價(jià)方法。 (2)采用模糊層次綜合評(píng)價(jià)法構(gòu)建了城市中心地區(qū)跨水域橋梁和隧道方案優(yōu)選的綜合評(píng)價(jià)模型,從經(jīng)濟(jì)、技術(shù)、安全、環(huán)境、資源和社會(huì)等六個(gè)方面詳細(xì)分析了橋隧方案優(yōu)選的評(píng)價(jià)指標(biāo),構(gòu)建了多層次結(jié)構(gòu)的評(píng)價(jià)指標(biāo)體系,利用層次分析法確定評(píng)價(jià)指標(biāo)權(quán)重,并確定了定性指標(biāo)和定量指標(biāo)的隸屬度。 (3)利用橋隧方案優(yōu)選的評(píng)價(jià)模型對(duì)長株潭城際鐵路躍進(jìn)湖段躍進(jìn)湖特大橋和盾構(gòu)隧道方案進(jìn)行綜合評(píng)價(jià),通過對(duì)評(píng)價(jià)結(jié)果的分析,得到了該工程段盾構(gòu)隧道為較優(yōu)方案。 (4)通過對(duì)盾構(gòu)隧道側(cè)穿過瀏陽河和躍進(jìn)湖段施工過程的數(shù)值模擬,分析了考慮流固耦合作用下盾構(gòu)隧道施工的狀態(tài)是安全的,并根據(jù)結(jié)果提出了施工安全控制措施,為將來工程順利施工提供理論依據(jù)和建議。
[Abstract]:Absrtact: when intercity railway lines pass through the city center, they often encounter the blocking of rivers, lakes, seas and other waters, or overlap with existing traffic lines and structures. The choice of bridge or tunnel is a very complicated and meaningful problem. In this paper, the key technology of Xiangjiang tunnel construction of Changsha-Zhuzhou-Xiangzhou-Xiangjiang Railway, which is the subject of the Ministry of Railways, is studied in this paper, aiming at the transformation of Changsha-Zhuzhou-Zhuzhou-Jinghu Bridge into a tunnel project. This paper makes a preliminary study on the comprehensive evaluation of the optimal selection of bridge and tunnel schemes in urban central areas. The main research contents and results are as follows: 1) through comparative analysis of the advantages and disadvantages of various evaluation methods, combined with the characteristics of optimal selection of bridge and tunnel schemes, The fuzzy comprehensive evaluation method combined with the analytic hierarchy process and the fuzzy comprehensive evaluation method is adopted as the optimal selection and evaluation method for bridge and tunnel schemes. (2) A comprehensive evaluation method of fuzzy hierarchy process is used to construct the cross water in the urban central area. A comprehensive evaluation model for optimal selection of regional bridge and tunnel schemes, From six aspects of economy, technology, safety, environment, resources and society, the evaluation index of bridge and tunnel scheme is analyzed in detail, the evaluation index system of multi-level structure is constructed, and the weight of evaluation index is determined by AHP. The membership degree of qualitative index and quantitative index is determined. (3) Comprehensive evaluation of Yuejinhu super bridge and shield tunnel scheme of Changsha-Zhuzhou-Xiangtan inter-city railway leaping into lake section is carried out by using the optimal evaluation model of bridge and tunnel scheme. Through the analysis of the evaluation results, it is concluded that the shield tunnel in this section of the project is the best scheme. (4) the numerical simulation of the construction process of the shield tunnel side through the Liuyang River and the leaping lake section is carried out. It is analyzed that the construction state of shield tunnel under fluid-solid coupling is safe, and the construction safety control measures are put forward according to the results, which provide theoretical basis and suggestions for the smooth construction of the future project.
【學(xué)位授予單位】：中南大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2014
【分類號(hào)】：U442.5;U455.43

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本文編號(hào)：2023116