【摘要】：新光快速路南洲立交橋位于廣州市海珠區(qū)南環(huán)快速路與新光快速路交匯點(diǎn),采用三層互通式立交形式,本次新建工程是在原有線路的基礎(chǔ)上進(jìn)行擴(kuò)建,增加互通匝道,增加的匝道旁有交通要道、河涌、已建橋梁或道路,這就涉及到吊裝方法的一個(gè)很重要內(nèi)容,要順利在已有構(gòu)筑物上施工。本次綜合技術(shù)方案應(yīng)用于新建I匝道I0~I8和K匝道K0~K2、K5~K8之間的鋼箱梁。鋼箱梁采用單箱三室結(jié)構(gòu),采用兩聯(lián)跨、三聯(lián)跨、四聯(lián)跨等幾種安裝形式,線路總長約425延米,并有平曲線、豎曲線。論文首先設(shè)計(jì)了新光快速路南洲立交橋的項(xiàng)目管理體系,制定了項(xiàng)目目標(biāo),確定了相應(yīng)的項(xiàng)目管理組織,并建立了質(zhì)量、工期、成本、安全管理體系。論文針對(duì)新光快速路南洲立交橋的工程難點(diǎn)——復(fù)雜環(huán)境下施工,進(jìn)行了多種施工方法的方案比選,并確定了不同地形選擇不同的施工方案。論文給出了適合于一些軟質(zhì)地基、跨河涌和跨高速公路地形,由于現(xiàn)場(chǎng)位置限制,吊機(jī)不能夠直接吊裝就位,需先吊裝到某一位置,然后對(duì)鋼箱梁進(jìn)行水平或垂直推拉就位的復(fù)雜環(huán)境。論文進(jìn)一步分析了各種施工方法存在的風(fēng)險(xiǎn)因素,并對(duì)所識(shí)別的風(fēng)險(xiǎn)因素進(jìn)行了評(píng)估,最終給出了風(fēng)險(xiǎn)應(yīng)對(duì)措施。本文針對(duì)現(xiàn)場(chǎng)復(fù)雜的環(huán)境,對(duì)鋼箱梁施工綜合技術(shù)進(jìn)行了技術(shù)研究和攻關(guān)后,應(yīng)用了該施工技術(shù)成果,通過在該工程的施工實(shí)踐,在復(fù)雜環(huán)境下城市立交橋的鋼箱梁綜合施工方面取得了較好的施工經(jīng)驗(yàn),確保施工安全,節(jié)約成本,并使全橋質(zhì)量及線形達(dá)到設(shè)計(jì)及規(guī)范要求,論文結(jié)論有利于新光快速路南洲立交橋鋼箱梁施工項(xiàng)目的開展,有助于實(shí)現(xiàn)項(xiàng)目目標(biāo)。
[Abstract]:The Nanzhou Interchange of Xinguang Express Road is located at the intersection of Nanhuan Expressway and Xinguang Expressway in Haizhu District, Guangzhou City. It adopts the form of three-storey interchange. The new project is to expand on the basis of the existing line and increase the interchange ramp. The added ramps have major traffic routes, river surges, bridges or roads already built, which involves a very important aspect of the lifting method, which requires the smooth construction of existing structures. The scheme is applied to steel box girder between I ramp I0~I8 and K ramp K 0 / K 2 and K 5 / K 8. The steel box girder adopts the structure of single box and three rooms, adopts two-span, three-span, four-span and so on. The total length of the line is about 425 Yanmeters, and there are horizontal curve and vertical curve. Firstly, the project management system of Nanzhou overpass on Xinguang Expressway is designed, the project target is formulated, the corresponding project management organization is determined, and the quality, time limit, cost and safety management system are established. In view of the construction difficulty of Nanzhou overpass of Xinguang Expressway under the complex environment, this paper compares and selects various construction methods, and determines different construction schemes with different terrain selection. The paper gives that it is suitable for some soft foundation, cross-river gushing and cross-highway topography. Due to the limitation of site location, the crane can not be directly mounted in position, so it needs to be lifted to a certain position first. Then the steel box girder is pushed and pulled horizontally or vertically in the complex environment. The paper further analyzes the risk factors existing in various construction methods, and evaluates the identified risk factors, and finally gives the risk response measures. In view of the complex environment on the spot, this paper has carried on the technical research and the key problem to the steel box girder construction comprehensive technology, has applied the construction technical achievement, through the construction practice in this project, In the complex environment, the comprehensive construction of steel box girder of urban overpass has gained better construction experience, ensures construction safety, saves cost, and makes the quality and alignment of the whole bridge meet the requirements of design and specification. The conclusion of the paper is beneficial to the development of the steel box girder construction project of Nanzhou overpass on Xinguang Express Road and to the realization of the project goal.
【學(xué)位授予單位】：西安建筑科技大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類號(hào)】：U445

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本文編號(hào)：2468086