發(fā)布時(shí)間：2018-05-20 01:34

  本文選題：基坑支護(hù) + 盾構(gòu)隧道��； 參考：《安徽理工大學(xué)》2017年碩士論文

【摘要】：隨著我國(guó)城市建設(shè)的快速發(fā)展,諸如城市供排水、燃?xì)�、供水、電氣等地下管線事故頻發(fā)。特別近年來,受世界氣候變暖的影響,極端天氣引發(fā)的城市內(nèi)澇現(xiàn)象日益增多,嚴(yán)重影響大中型城市的正常運(yùn)轉(zhuǎn)和居民的人身安全,已引起我國(guó)政府的高度重視,并將城市管廊建設(shè)列為我國(guó)"十三五"發(fā)展規(guī)劃重點(diǎn)建設(shè)的內(nèi)容之一。盡管早在18世紀(jì)歐洲已開始城市管廊建設(shè),但我國(guó)近幾年才興起大規(guī)模建設(shè),相關(guān)的設(shè)計(jì)理論和施工技術(shù)很不成熟,亟待開展相關(guān)研究。本文以蘇通過江盾構(gòu)綜合管廊建設(shè)項(xiàng)目為工程背景,以隧道始發(fā)井通道及基坑和隧道盾構(gòu)區(qū)間的襯砌為研究對(duì)象,采用數(shù)值模擬和綜合分析相結(jié)合的研究方法,深入分析了其工程地質(zhì)與水文條件特點(diǎn),從技術(shù)、經(jīng)濟(jì)、環(huán)境、風(fēng)險(xiǎn)評(píng)估等多維度,對(duì)盾構(gòu)管廊線位進(jìn)行了比選研究;分析了盾構(gòu)始發(fā)井基坑受力特點(diǎn),研究了地下連續(xù)墻加鋼筋混凝土支撐及鋼支撐的支護(hù)形式的合理性;初步分析了盾構(gòu)管廊隧道的形式和拼裝方式,并運(yùn)用運(yùn)用有限元軟件對(duì)隧道襯砌受力特點(diǎn)進(jìn)行了數(shù)值模擬分析;最后,結(jié)合該工程盾構(gòu)始發(fā)井基坑施工，驗(yàn)證了基坑維護(hù)結(jié)構(gòu)和施工的安全性和可靠性。
[Abstract]:With the rapid development of urban construction in China, underground pipeline accidents such as urban water supply and drainage, gas supply, water supply, electricity and so on occur frequently. Especially in recent years, under the influence of global warming, the phenomenon of urban waterlogging caused by extreme weather is increasing day by day, which seriously affects the normal operation of large and medium-sized cities and the personal safety of residents, which has aroused the great attention of our government. The construction of city management corridor is listed as one of the key contents in the development plan of the 13th Five-Year Plan of China. Although the construction of urban pipeway has begun in Europe as early as the 18th century, large-scale construction has only emerged in China in recent years. The relevant design theory and construction technology are not mature enough, so it is urgent to carry out relevant research. This paper takes the construction project of integrated pipe corridor of Jiangsu River Shield as the engineering background, takes the tunnel origination passage and the lining of foundation pit and shield section as the research object, and adopts the research method of combining numerical simulation and comprehensive analysis. The characteristics of engineering geology and hydrological conditions are deeply analyzed, and the comparison and selection of shield pipe corridor lines are carried out from the aspects of technology, economy, environment and risk assessment, and the mechanical characteristics of the foundation pit of shield tunneling initial well are analyzed. The rationality of supporting form of underground continuous wall with reinforced concrete bracing and steel bracing is studied, and the form and assembling mode of shield tunnel are preliminarily analyzed. Finally, the safety and reliability of the foundation pit maintenance structure and construction are verified by using the finite element software to simulate the characteristics of tunnel lining force; finally, combined with the foundation pit construction of the shield tunneling starting well, the safety and reliability of the foundation pit maintenance structure and construction are verified.
【學(xué)位授予單位】：安徽理工大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2017
【分類號(hào)】：TU990.3

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本文編號(hào)：1912616