本文選題：層次分析法 + 模塊化施工��； 參考：《寧波大學(xué)》2014年碩士論文

【摘要】：核能發(fā)電是核能和平利用的重要形式,核能發(fā)電不僅是國民經(jīng)濟(jì)發(fā)展的重要支撐,更是國家工業(yè)實力的體現(xiàn)。在國際社會越來越關(guān)注低碳排放時,核電站以其零碳排放及單機(jī)組發(fā)電功率大等特點在能源發(fā)展新趨勢中的地位尤為突出。AP1000技術(shù)作為第三代先進(jìn)壓水堆核電技術(shù)的代表,因其非能動的安全設(shè)計與模塊化施工等特點,受到了國際核能行業(yè)的矚目。在國家大力發(fā)展清潔能源的背景下,AP1000全球首堆落地浙江三門核電1號機(jī)組,成為國家引進(jìn)AP1000技術(shù)的依托項目。在首臺AP1000機(jī)組的建設(shè)中,因其獨有的模塊化施工特點及相關(guān)安全設(shè)計,建造過程中沒有現(xiàn)成的核電建造經(jīng)驗可以參照。其施工過程注定是將先進(jìn)的第三代核電技術(shù)從圖紙搬到現(xiàn)實的探索之路,更是積累先進(jìn)核電建造經(jīng)驗,為后續(xù)核電項目鋪設(shè)騰飛之路的開拓之舉。因此,做好施工建設(shè)問題的分析與總結(jié),并提出切合現(xiàn)實的優(yōu)化措施對于今后我國的核電建設(shè)具有重要的實際意義。在三門核電1號機(jī)組的建設(shè)過程中,模塊化施工遇到了許許多多形式各異的問題,其中影響施工關(guān)鍵路徑的問題尤為重要,CA20模塊單墻板施工變形便是其中之一。本文從CA20模塊單墻板施工過程切入,以施工記錄中的大量數(shù)據(jù)為依據(jù),對不同施工階段中CA20模塊單墻板施工變形超差問題進(jìn)行了全面分析。主要的影響因素包括了:子模塊預(yù)制、運輸;組對、焊接;翻轉(zhuǎn)吊耳焊接;組件翻轉(zhuǎn)豎立;CA20模塊整體吊裝;CA20模塊外側(cè)混凝土澆筑等。本文針對子模塊組裝焊接階段、CA20模塊整體吊裝后混凝土澆筑階段的若干影響因素采取適合的分析方法,如數(shù)據(jù)統(tǒng)計理論計算和有限元建模分析等方法。通過數(shù)據(jù)分析,得出單墻板變形在一系列施工階段中的變化趨勢及相應(yīng)的影響因素。針對工程施工中影響因素多且錯綜復(fù)雜互相影響的特點,應(yīng)用層次分析法將復(fù)雜的問題表示為有序的遞階層次結(jié)構(gòu),有效地解決了定性、定量的多變量的多準(zhǔn)則判斷問題。借用層次分析法對影響因素的重要性進(jìn)行了研究,得出結(jié)論,影響因素權(quán)重排序依次是:混凝土澆筑環(huán)節(jié)變形、組對焊接組裝變形、整體吊裝變形、組件翻轉(zhuǎn)變形、焊接應(yīng)力釋放變形、預(yù)制運輸變形。此分析結(jié)果對后續(xù)核電站的模塊化施工提供了優(yōu)化施工管理的依據(jù)和實踐經(jīng)驗,有利于后續(xù)同類施工的質(zhì)量控制管理。在層次分析法分析判斷結(jié)果的基礎(chǔ)上,有針對性地提出解決與優(yōu)化對策,使復(fù)雜的工程問題層層剝離,有效地解決了多因素相互交織的情況。通過應(yīng)用層次分析法對實際AP1000核電站建造的模塊施工問題的分析,為今后的模塊化施工應(yīng)用積累了更多的寶貴經(jīng)驗。
[Abstract]:Nuclear power generation is an important form of peaceful use of nuclear energy. Nuclear power generation is not only an important support for the development of the national economy, but also a reflection of the national industrial strength. At a time when the international community is paying more and more attention to low carbon emissions, the status of nuclear power plants in the new trend of energy development is particularly prominent because of their characteristics of zero carbon emissions and large power generation of single units. AP1000 technology is regarded as the representative of the third generation advanced PWR nuclear power technology. Because of its characteristics of inactive safety design and modular construction, it has attracted the attention of the international nuclear energy industry. Under the background of the development of clean energy in the country, the first pile of AP1000 nuclear power unit of Zhejiang Sanmen Nuclear Power Plant No. 1 has been built up in the world, and it has become a supporting project for the introduction of AP1000 technology by the country. In the construction of the first AP1000 unit, due to its unique modular construction characteristics and related safety design, there is no ready-made experience in nuclear power construction. The construction process is destined to move the advanced third-generation nuclear power technology from drawing to reality, and also to accumulate advanced nuclear power construction experience and pave the way for future nuclear power projects to take off. Therefore, it is of great practical significance to do well the analysis and summary of construction problems and put forward some practical optimization measures for nuclear power construction in China in the future. In the process of construction of Sanmen No.1 nuclear power unit, modularization construction has encountered many problems of different forms, among which the problem affecting the key path of construction is especially important. The construction deformation of CA20 module single wall board is one of them. In this paper, from the construction process of CA20 module single wall board, based on a large number of data in construction records, this paper makes a comprehensive analysis of the problem of deformation excess in construction of CA20 module single wall board in different construction stages. The main influencing factors include: submodule prefabrication, transportation; group pair, welding; overturning hoisting and hoisting CA20 module; integral hoisting of CA20 module; external concrete pouring of CA20 module, etc. In this paper, suitable analysis methods, such as data statistic theory calculation and finite element modeling analysis, are adopted for some factors affecting concrete pouring stage after integral hoisting of CA20 module in submodule assembly and welding stage. Through data analysis, the variation trend of single wall board deformation in a series of construction stages and the corresponding influencing factors are obtained. In view of the fact that there are many factors affecting each other in engineering construction, the analytic hierarchy process (AHP) is applied to express the complex problems as an orderly hierarchical structure, which effectively solves the problem of qualitative and quantitative multivariable multicriteria judgment. The importance of influencing factors is studied by using AHP. It is concluded that the order of weight of influencing factors is: deformation of concrete pouring link, deformation of welding assembly, deformation of integral hoisting, deformation of overturning component, and so on. Welding stress release deformation, prefabricated transport deformation. The result of this analysis provides the basis and practical experience for optimizing construction management for the modular construction of the subsequent nuclear power plant, and is conducive to the quality control management of the similar construction in the follow-up. On the basis of the analytic hierarchy process (AHP) analysis and judgment results, the solutions and optimization measures are put forward in order to make the complex engineering problems peel off layer by layer, which effectively solves the interwoven situation of multiple factors. Through the application of analytic hierarchy process (AHP) to the practical AP1000 nuclear power plant construction module construction problem analysis, for the future modular construction application accumulated more valuable experience.
【學(xué)位授予單位】：寧波大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2014
【分類號】：TM623

【參考文獻(xiàn)】

相關(guān)期刊論文 前1條

1 崔巖;屠鳳蓮;徐志剛;馬金鳳;;不規(guī)則形狀薄板的平面應(yīng)力分析[J];機(jī)械設(shè)計與制造;2012年08期

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本文編號：2108955