本文選題：城市環(huán)境 + 大型地鐵換乘車站��； 參考：《西南交通大學》2014年碩士論文

【摘要】：上海軌道交通某地鐵換乘車站處于十字路口交匯處,該車站開挖基坑深度大、車站結(jié)構(gòu)復雜,所處地質(zhì)屬軟土流變地層,并伴有流沙涌水的特征;同時,地下管線、地表建筑物要求保護等級高,在軟土城市地鐵工程中具有廣泛的代表性。本論文以該地鐵換乘站為工程依托,通過理論分析、數(shù)值計算以及現(xiàn)場測試等技術(shù)手段對流變地層中大型地鐵換乘車站的綜合施工技術(shù)展開研究。通過研究,取得以下研究成果：(1)研究了上海淤泥質(zhì)富水粘土地層的流變特性,完成了在基坑施工過程中流變地層的應力應變分析。(2)提出并形成應用于地鐵換乘車站施工的蓋挖復合施工工法；對該工法的技術(shù)特點、工藝原理、施工技術(shù)流程、施工要點、勞動力配置及適用范圍進行詳細闡述,重點提出該工法為蓋挖條件下的下層開挖與上層結(jié)構(gòu)施作的平行作業(yè)技術(shù),既保證了工程質(zhì)量,又加快了施工進度,確保了工期。(3)研究采用了蓋挖法環(huán)板撐技術(shù),即以板代撐,加大施工空間的同時有效控制了流變地層的變形和周邊沉降,保證了工程建設(shè)和環(huán)境安全。該工程項目已經(jīng)竣工,且滿足設(shè)計和規(guī)范要求,保證了工期。實踐證明本論文形成的流變地層大型地鐵換乘車站綜合施工技術(shù)是可行的,成功實現(xiàn)了流變地層中大型換乘車站的快速施工；與傳統(tǒng)的蓋挖順作法、蓋挖逆作法相比,節(jié)約了工期,減少了管理人員、施工人員的投入,顯著降低了施工成本,其經(jīng)驗可為今后類似工程的設(shè)計與施工提供借鑒。
[Abstract]:A subway transfer station of Shanghai Rail Transit is located at the intersection of the intersection. The deep excavation of the subway station is very deep, the structure of the station is complex, and the geology belongs to the rheological stratum of soft soil, accompanied by the characteristics of quicksand gushing water, and the underground pipeline, The surface buildings require high level of protection and are widely representative in the soft soil city subway engineering. In this paper, based on the subway transfer station, the comprehensive construction technology of the large subway transfer station in rheological strata is studied by means of theoretical analysis, numerical calculation and field test. The rheological characteristics of the muddy and water-rich clay strata in Shanghai have been studied through the following research results: The stress and strain analysis of rheological strata during foundation pit construction is completed. The composite construction method of cover and excavation applied to subway transfer station construction is put forward and formed, and the technical characteristics, technical principle, construction technical flow, construction key points of this construction method are discussed. The distribution of labor force and the scope of application are expounded in detail. The emphasis is put forward that this method is a parallel operation technique for the excavation of the lower layer under the condition of overburden excavation and the upper structure, which not only guarantees the quality of the project, but also speeds up the construction progress. In order to ensure the construction period, the research adopts the technology of cover and excavation ring plate brace, that is, using plate instead of brace, which increases the construction space and effectively controls the deformation of rheological stratum and the surrounding settlement, and ensures the engineering construction and environmental safety. The project has been completed and meets the design and specification requirements to ensure the duration of the project. It has been proved by practice that the comprehensive construction technology of large metro transfer station formed in this paper is feasible, and the rapid construction of large transfer station in rheological stratum has been successfully realized, which is compared with the traditional capping method and the reverse method. The time limit is saved, the input of managers and constructors is reduced, and the construction cost is significantly reduced. The experience can be used for reference for the design and construction of similar projects in the future.
【學位授予單位】：西南交通大學
【學位級別】：碩士
【學位授予年份】：2014
【分類號】：TU94

【參考文獻】

相關(guān)期刊論文 前5條

1 付艷斌;宋博通;朱合華;;卸載作用下淤泥質(zhì)黏土流變規(guī)律試驗研究[J];深圳大學學報(理工版);2009年04期

2 張建新;張陽;張淑朝;任杰東;;深基坑逆作開挖時地下連續(xù)墻側(cè)向變形分析[J];鐵道建筑;2009年11期

3 張冬冬;宋春雨;陳龍珠;;Numerical Evaluation of Land Subsidence Induced by Dewatering in Deep Foundation Pit[J];Journal of Shanghai Jiaotong University(Science);2013年03期

4 高文華,楊林德,沈蒲生;基坑變形預測與周圍環(huán)境保護[J];巖石力學與工程學報;2001年04期

5 陸余年;沈磊;岳建勇;;與地下主體結(jié)構(gòu)相結(jié)合的超大深基坑支護結(jié)構(gòu)變形及內(nèi)力特性分析[J];巖土工程學報;2006年S1期

相關(guān)博士學位論文 前1條

1 唱偉;超深基坑若干問題的研究及工程實踐[D];吉林大學;2004年

相關(guān)碩士學位論文 前2條

1 蘆森;分步開挖和逐級加撐的地鐵車站深基坑圍護結(jié)構(gòu)性狀研究[D];浙江大學;2005年

2 馮志;地鐵工程深基坑圍護結(jié)構(gòu)穩(wěn)定性預測研究[D];北京交通大學;2006年

，

本文編號：1885959