上海中心大厦深基坑顺逆结合后浇带施工技术

20162453CONSTRUCTIONTECHNOLOGY119DOI10.7672/sgjs2016030119200032。。TU974A1002-8498201603-0119-04Top-downandDown-topConstructionTechniqueforPost-pouringBandofDeepFoundationExcavationatShanghaiTowerTangQiangdaWuTaoShanghaiJiankeEngineeringConsultingCo．Ltd．Shanghai200032ChinaAbstractShanghaiTowerasthetallestbuildingunderconstructioninChinathegeneralconstructionschemeforitsdeepandlargefoundationofmainblockandpodiumisthecombinationoftop-downanddown-topmethod．Thepost-pouringbandissetbetweenbasementsofmainblockandpodiumwhoselocationisdeterminedaccordingtothelocationsoftop-downenclosurewallsofmainblockandringsupportingstructure．Inviewoftheconstructionconditionsofpost-pouringbandinShanghaiTowerhandlingmethodsofkeyjointsofpost-pouringbandaregiveninthispapertheenclosureconditionsofpost-pouringbandareanalyzedcombiningwithmonitoringsettlementdatatechnicaltreatmentmeasuresforundergroundwaterproofjointsofpost-pouringbandandenclosureconstructiontechniqueofpost-pouringbandaremainlydiscussed．Keywordstallbuildingsdeepfoundationexcavationpostp[e-mail]2015-08-240。。。1632m、。。121m。。、2。34960m2531.2m33.2m26.7m。±0.000。1.2m50m61.2m“”48m。12045。、。1。1Fig．1PlanofShanghaiTowerfoundationexcavation27m、、、、。27m⑦2⑨2。212.5～3m。。B0～B4B5、、340。2m4m。21、21。33.1。B0～B5。B5。1Table1Supportexchangesummaryinpost-pouringbandmmB0B1B2B3B4B52501801901802001600200180190160180200300166800mm。2300mm400mm2mmS4008000mm。3500mm6220mm×25mm1。414d40mm。5221。61mm。2。2B5Fig．2WaterproofingdesignofB5Fpost-pouringband3.2B5。→→→→。1B52016No．3121250mm。2。3。4。44.1、。33。3Fig．3Developingsettlementonverticalsectionintheeast-westdirection。、。。4.2。B5B0～B44。。2。4Fig．4Constructionsequenceofthepost-pouringband4.34.3.1。。、。。4.3.2B0～B4、、、＞5cm。。80%。4.3.3B0～B4、2。B1B350%12245Ⅰ。4.3.45。。。P12、。≥28d。5。565.1mm。0.65mm。5Fig．5Thesettlementofmeasuringpointsbeforetheclosureofpost-pouringbandattheeastoffoundation6、。6Fig．6Thesettlementofmeasuringpointsaftertheclosureofpost-pouringbandattheeastoffoundation。1DG/TJ08-2113—2012S．2012．2．J．2012411831-34．3．．J．2008434-36．4．C//、．Ⅲ．2012．5．J．20122421-431．118、。1．J．201544692-94103．2．———J．2012142-43．3．－J．2012478-79．4．D．2011．5．D．2012．6．J．201019147-148．7．J．2014147375．8．J．2005577-78．9J．201443S1445-446．