泰州长江大桥巨型深水沉井施工技术

(,400074):,76m,55m,,:;;;;;GPS:U445154+3:B:1673-6052(2010)01-0024-041,,,2.2km,18m,2.5m/s,(),2215m390+1080+1080+390m,,,44.458.4m,44m58m,,46m60m,5014m64.4m,12,76m,,,,38m,12(1),,(2),,,,,33.1()3.23.2.138m,6,8m+56m=38m,,8m,,2,,,,422010,,3.5m11m,27m,,,,3.2.2++++++,:(1)++:,,,,3:3++,,():,,,,,,,,,,,,,44m,(2)+:++,,+,,,,,,,,,,+++170m,,68t()(),,(,),12,50t,,12,4(),2,4,2,510t,55t,4:4,,,,,,,,,,,,,521:,,,5,,,,,,,3.2.3,,,,3.2.4,,,,,;4h,8h24min,2.5m,(),,4,,,8h5800,2,1,,,,,3.2.5,,20,,,,,,,,,,,,,,,3.2.6GPS,GPS,GPSGPS,GPS,GPS,,,,,3.2.7,+,,,1080cm,,,325mm,,64,,,,,6220106,,(),,,,,,,,,,,,,,,(),,3.2.8,,,,6,,45m,,,9,3240m3,,2120m3/h,2,,23m,20h,8h7,,,,,3.2.9,,,,,,3.2.1041.2m55.2m,11m,2m3,12,,4,,7m,4:50cm,1,1/150:9.3cm,2.7cm,11’,1/3605(1),5,2,,,GPS(2),,,,721:ConstructionTechnologyforLargeDeep-WaterOpenCaissonofTaizhouYangtzeRiverHighwayBridgeAbstractTheopencaissonofthemiddletoweroftheYangtzeRiverHighBridge,knownastheworldlargestdeep-wateropencaisson,is76minheightwitha55membeddeddepth.Theoveralltechnicalprocessinthecon2structionofthisopencaissonisintroduced,andtheinnovativeconstructiontechnologiesinthisprojectmayhavesomereferencesforconstructionofsimilaropencaisson.KeywordsTaizhouYangtzeRiverHighwayBridge;Opencaisson;Steelanchorpier;Floating;Soilsuc2tion;GPS(,344000)::;;;:U443113:B:1673-6052(2010)01-0028-031,,,,,V,,,,,,,,,20.420.9,12151686mm,38,92,6102(1),,,,,(2),,,,,,(3),,,,,(4)(),();,;(5),,822010