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1、兰新第二双线东湾沟特大桥施工工艺研究[摘要]本设计为东湾沟特大桥DK126+370.16〜DK127+945.86施工工艺,桥梁全K:1575.7米,分左右两幅桥。桥址处的桥址位于湟水河二级阶地上,局部位于三级阶地前缘,地形较平坦,冲沟发育多辟为耕地,两冲沟宽为25〜95m,较顺直,有常年流水,水量不大,有多条干渠横穿而过。遵循“适用、经济、安全、美观”的原则,结合桥址处工程地质,水文气象条件以及各种技术标准。木设计主耍完成以下各项A容:确定施丄总体部署及总体施丄方案,各项资源配置计划,确保工期、质量、安全的各项技术、组织、经济措施,确定各分项分部工程的施工方法,
2、关键工程的施工方案,以及进行支架受力的简单计算。本设计为施工过程提供依据,设计屮涉及许多关键工程屮应该注意的问题以及怎样保证施工的顺利进行。桥梁上部结构采用预制箱梁的形式,施工方法运架一体机铺架,主要进行箱梁的预制、运输和架设控制。基础为钻孔灌注桩。[关键字]桥梁施工方案措施NewZealandseconddoubleditchEastBayBridgeConstructionTechnology[Abstract]ThedesignfortheEastBayDitchBridgeDK126+370.16〜DK127+945.86constructionproce
3、ss,thebridgelengthof1575.7m,atabouttwobridges.BridgesiteislocatedatthebridgesiteHuangshuitwoterraces,threeterracesinfrontoflocal,relativelyflatterrain,gullydevelopmentandmoreturnedintoarableland,twogullywidthof25〜95m,morestraight,withperennialwater,notwater,crossesanumberoftrunk.Follo
4、wingtheprincipleof“suitable,economy,security,Artistic’’,combiningtheengineeringgeology,hydrologicalandmeteorologicalconditionsofthebridgesiteplace,andavarietyoftechnicalstandards.Thedesigncompletesmainlythefollowingelements:determininggeneralplanoftheconstructionandgeneralconstruction
5、scheme,configurationplanofresources,allkindsoftechnical,organizationalandeconomicmeasurestoensuretheduration,quality,safety,determiningtheconstructionmethodofthesub-divisionprojects,constructionmethodofthekeyprojects,andconductthesimplestresscalculationofsupport.Thedesignprovidestheba
6、sisfortheconstructionprocess;thedesigninvolvesanumberofproblemsthatshouldpaidattentioninkeyprojectsandhowtoensurethesmoothprogressoftheconstruction.Theuseofprecastboxgirderbridgesuperstructureintheformofonemachineframeconstructionmethodofframingoperation,mainlyfortheprecastboxgirder,t
7、ransportationanderectionofcontrol.Basisfortheboredpile.[Keyword]BridgeConstructionPlanmeasureDesign第一章••••••••••••••••••••••一■、丄程简介二、主耍工程数量三、主要设计标准四、主要临吋工程參參參參參參參參••••••••五、场地平面布置六、组织领导人员安排第二章各分项分部工程的主耍施工方第一令总体施工方案........第二节分项施工方法........一、主要分项施工方法二、钻孔桩分项三、承台施工....四、墩身施工....五、空心墩施工參參
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