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1、现浇箱梁施工工艺技术总结一、工程概况本桥起点桩号K1+838.82，终点桩号K1+959.18，桥梁跨径分布为38m+40m+38m预应力混凝土连续钢构桥。桥梁全长120.36m。上部主梁采用单箱三室箱梁结构，主梁一般段梁高2.5m，至支点处加高至3.5m，顶板厚0.25m，至支点处加厚至1.25m，主梁一般段腹板厚0.45m，至梁端部变化至0.70米。二、工程总体方案本工程拟采用贝雷梁及钢管支架进行现浇箱梁施工。为了对1#、2#墩进行基础施工，在桥外侧搭设钢便桥并在桥位搭设钢平台。采用钢管桩作为便桥的支撑桩，在
2、钢管桩四周设置纵横向［16槽钢作为连接件，确保便桥的稳定性。待便桥搭设完成后，搭设施工平台，施工平台同样采用钢管桩作为支撑桩。待桩基、墩身施工结束后，拆除施工平台。搭设现浇箱梁支架，待箱梁整体施工结束，拆除箱梁支架和便桥，清理施工场地。三、箱梁支架搭设1、支架承载力确认根据设计图纸临近孔位地质勘探报告确认支架下方详细地质情况，算出支架承载力，在采用高频液压振动锤将钢管桩打入确定位置，直到钢管桩停止下沉,持荷2分钟为止。保证钢管桩底标高处在计算持力层，方可施工下一道工序。2、支架布置及搭设要求andspecialt
3、oolsforemergencyresponseequipmentandfacilities.Emergencypreparednessandresponseplan1)emergencyresponse(1)Ifamajoraccidentoccurs,theprojectshouldsetupemergencyresponseteams,chairedbytheprojectmanager,headofproductionandsafetycoordinators,professionalforemanfor
4、thecrew,primarilyresponsiblefortheorderlyrescuewhenanemergencyoccursorprocessing,outsourcing,teammanagerandsupportstaff,assistingtheDeputyProjectManagerforrelatedauxiliarywork.(2)aftertheaccident,theprojectmanagerisresponsibleforfieldcommander,advancetheestab
5、lishmentofemergencyresponseteampersonnel,accountability,seriouslyinjuredofficerssentoutrescue,haveprocedurestodealwithaccidents,incidents,maximumreductionincasualtiesandpropertyloss.(3)Ifanaccidentoccurs,pressDivisioninadvanceforemergencypersonnelcleared,conc
6、entratemanpowerandmaterialandfinancialresourcestorescuetheinjured,decreaseofthemaximumloss.(4)aftertheaccidentprocessingwork(5)identifiedthecauseoftheaccidentandthepersonresponsible.(6)thewrittenreporttothesupervisorinwriting,includingthetimeandplaceoftheacci
7、dent,injury(death)person'sname,sex,age,trades,injuries,injuries.(7)thedevelopmentofeffectivepreventivemeasurestopreventsuchaccidentsfromhappeningagain.(8)educationofallpersonneloftheorganization.(9)informedcriticismofthoseresponsible.(10)allpersonnelreadoutth
8、eresults,andresponsibledisposal.(11)maintenanceofemergencysupplies,maintenanceandtesting①strengtheningtheday-to-daymanagementofthevariousfirefightingequipmentfire-fightingequipment,author
