本文選題：半潛式平臺(tái) + 張力腿平臺(tái)��； 參考：《大連理工大學(xué)》2016年碩士論文

【摘要】：深海能源的不斷開(kāi)發(fā)和利用,促進(jìn)了海洋平臺(tái)的大型化,也增加了海洋平臺(tái)的設(shè)計(jì)和建造難度。海洋平臺(tái)的大型化,不僅增加了上部組塊的體積和重量,還增加了上部組塊的合攏作業(yè)高度。因此,在大型海洋平臺(tái)建造合攏的過(guò)程中,如何安全高效地完成上部組塊起升過(guò)程,成為設(shè)計(jì)和建造單位研究的重點(diǎn)和難點(diǎn)。本文圍繞大型海洋平臺(tái)建造合攏中上部組塊的起升技術(shù),調(diào)研了近年來(lái)國(guó)內(nèi)外半潛式平臺(tái)、張力腿平臺(tái)、導(dǎo)管架平臺(tái)和特殊海洋工程平臺(tái)等大型海洋平臺(tái)上部組塊起升的相關(guān)案例。對(duì)大型海洋平臺(tái)上部組塊起升的提升和頂升關(guān)鍵技術(shù)進(jìn)行研究。分別從起升設(shè)備、起升能力和起升過(guò)程等方面分析了提升和頂升的技術(shù)特點(diǎn)。通過(guò)對(duì)起升重量、起升高度、安全性和經(jīng)濟(jì)性等因素進(jìn)行比較,總結(jié)出提升和頂升的技術(shù)優(yōu)勢(shì),并提出上部組塊起升作業(yè)的安全系數(shù),以供大型海洋平臺(tái)合攏選擇合適的起升設(shè)備。本文還探討了大型海洋平臺(tái)上部組塊提升和頂升過(guò)程的技術(shù)特點(diǎn)和發(fā)展方向,為大型海洋平臺(tái)建造合攏提供可靠的理論基礎(chǔ)和參考依據(jù)。本文對(duì)如何合理確定起升方案布置空間,以及合理選取上部組塊起升點(diǎn)做了詳細(xì)闡述,提出了起升載荷的簡(jiǎn)化模型和簡(jiǎn)化計(jì)算方法,對(duì)提升技術(shù)的提升塔架形式進(jìn)行了探討和優(yōu)劣分析,并通過(guò)實(shí)際案例對(duì)所提出的起升方案設(shè)計(jì)方法進(jìn)行了驗(yàn)證。針對(duì)起升施工方案的安全評(píng)估問(wèn)題,本文從風(fēng)險(xiǎn)的角度出發(fā),將綜合安全評(píng)估的方法應(yīng)用到起升技術(shù)中,針對(duì)施工具體流程提出施工中可能存在的風(fēng)險(xiǎn)及相應(yīng)的解決措施,可以有效提高施工過(guò)程的安全性。同時(shí),將風(fēng)險(xiǎn)分析的方法應(yīng)用到對(duì)多方案的評(píng)價(jià)中,提出了一種具有重要參考價(jià)值的起升方案安全評(píng)價(jià)方法。針對(duì)大型海洋平臺(tái)上部組塊起升技術(shù)方案設(shè)計(jì)的多樣性問(wèn)題,本文將模糊綜合評(píng)判的方法應(yīng)用到上部組塊起升方案的對(duì)比分析中,對(duì)方案的技術(shù)、經(jīng)濟(jì)和安全三個(gè)方面進(jìn)行了綜合分析,并采用層次分析法分析了各項(xiàng)指標(biāo)的權(quán)重,根據(jù)起升方案的特點(diǎn)提出了評(píng)價(jià)指標(biāo)并給出了相應(yīng)的計(jì)算方法,為起升方案的設(shè)計(jì)和評(píng)價(jià)提供了理論依據(jù)；通過(guò)VB .NET開(kāi)發(fā)了針對(duì)起升方案的綜合評(píng)價(jià)程序,方便方案評(píng)價(jià)者使用。
[Abstract]:The continuous development and utilization of deep sea energy not only promote the large-scale of offshore platform, but also increase the difficulty of design and construction of offshore platform. The large scale of the offshore platform not only increases the volume and weight of the upper block, but also increases the closing operation height of the upper block. Therefore, in the process of building and closing large offshore platforms, how to safely and efficiently complete the lifting process of upper blocks has become the focus and difficulty in the research of design and construction units. This paper focuses on the hoisting technology of the large offshore platform to build the closed upper and middle blocks, and investigates the semi-submersible platform and the tension leg platform at home and abroad in recent years. Jacket platform and special offshore engineering platform and other large offshore platform upper block lifting cases. The key technologies of lifting and lifting of the upper block of large offshore platform are studied. The technical characteristics of lifting and lifting are analyzed from the aspects of lifting equipment, lifting capacity and lifting process respectively. By comparing the factors such as lifting weight, lifting height, safety and economy, the technical advantages of lifting and lifting are summarized, and the safety factor of lifting operation of upper block is put forward. For large offshore platform closure selection of suitable lifting equipment. This paper also discusses the technical characteristics and development direction of the uplift and uplift process of the upper block of the large offshore platform, which provides a reliable theoretical basis and reference basis for the construction and closure of the large offshore platform. This paper expounds in detail how to reasonably determine the layout space of the lifting scheme and how to select the lifting point of the upper block reasonably, and puts forward a simplified model and a simplified calculation method for the lifting load. The lifting tower form of lifting technology is discussed and analyzed, and the design method of lifting scheme is verified by practical cases. Aiming at the safety evaluation of lifting construction scheme, this paper applies the method of comprehensive safety assessment to hoisting technology from the point of view of risk, and puts forward the possible risks in construction and the corresponding solving measures in view of the concrete construction process. It can effectively improve the safety of the construction process. At the same time, the method of risk analysis is applied to the evaluation of multiple schemes, and a safety evaluation method of lifting scheme with important reference value is proposed. In view of the diversity of the design of the lifting scheme for the upper block of the large offshore platform, the fuzzy comprehensive evaluation method is applied to the comparative analysis of the lifting scheme of the upper block, and the technology of the scheme is discussed. The economic and security aspects are comprehensively analyzed, and the weight of each index is analyzed by AHP. According to the characteristics of the lifting scheme, the evaluation index is put forward and the corresponding calculation method is given. It provides a theoretical basis for the design and evaluation of the lifting scheme, and develops a comprehensive evaluation program for the lifting scheme through VB .NET, which is convenient for the evaluators of the scheme.
【學(xué)位授予單位】：大連理工大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2016
【分類號(hào)】：U674.38

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