金沙江梨园电站首台机定子磁化试验顺利通过-论文.pdf

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1、98人民长江2014年保证置换工程达到设计要求。该加固方案对类似下部6结语结构改造置换工程有一定的借鉴意义。对现有渡槽建筑物、桥梁进行下部结构改造或替参考文献：换为常见工程改造项目，施工方法较多。鉴于该工程[1]史洪泉，覃曼青，詹志勇，等．上海北外滩景观桥支撑置换工程与监测[J]．建筑施工，2007。(6)．工期较紧且施工空间限制较大，对常规结构替换方法[2]郑建岚．土木工程结构检测鉴定与加固改造[M]．北京：中国建材进行了改进。改进后的下部结构置换方案不仅对上部出版社．2008．结构无干扰，且占用下部结构空间也较小，同时

2、工期可(编辑：郑毅)以明显缩短。该置换方法的难点在于局部施工空间不足，因此对施工细节要求特别严格，严控施工过程才能RestructuringdesignandconstructionofsubstructureofaqueductWANGCong，YOULing，ZHUKezhao，SHIZhaofeng(TransportationCompany，ChangjiangInstituteofSurvey，Planning，DesignandResearch，Wuhan430010，China)Abstract：Substr

3、uctureofadrainageaqueductcrossingmaincanalofSouth—to—NorthWaterDiversionProjectwasneededtobereconstructedduetoexcessivewater—resistanceeffect，therestructuringdesignsolutionthatsubstitutesplate—piersforcol—umn—piersaswellastheconstructionschemearepresented．Inthecon

4、struction。theplate—piersweresubstitutedandthesee—tionofbentcapwasenlarged，SOtheformerforcesystemwastransferredwhiletheaqueductfunctionedwel1．Theforceanalysisfortherestructuringprocessisca~iedout，whichprovidesvaluablereferencesforothersubstructurerestructuringconst

5、ructioncharacterizedaslimitedconstructionscheduleandrestrainedconstructionclearance．Keywords：drainageaqueduct；restructuringofsubstructure；substitution；enlargementofsection；MiddleRouteProjectofSouth—．to—．NorthWaterDiversion(上接第94页)ConstructionschemeofTuanheaqueduct

6、ofMiddleRouteProjectofSouth—td—NorthWaterDiversionJIANXingchang，LIANGRenqiang，YANGXieyun(ConstructionandDesignDepartment，ChangiiangInstituteofSurvey，Planning，DesignandResearch，Wuhan430010，China)Abstract：Tomeetthedesignrequirementsofqualityandconstructionscheduleof

7、TuanheaqueductofSouth—to—NorthWa—terDiversion，thepapercomparestheconstructionschemesandtechnologiesbytwomethodsoffullscaffoldandaqueductfabrica—tionmachineaccordingtoengineeringandstructuralpropertiesoftheaqueduct．Withthetech—economiccomparisonfromfiveaspectsofcon

8、structionquality，period，cost，．safetyandconstructiondiversion，theoptimizedconstructionschemebyaqueductfabricationmachinewith40mwidthofspanand1600tweighti