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中国化学工程第三建设有限公司ChinaNationalChemicalEngineeringThirdConstructionCo.,Ltd(TCC)目录Contents1、冬季施工的定义：Definitionofwinterconstruction:............................................................................22、需冬季施工的内容：Aspertheconstructionprogressschedule...........................................................23、冬季施工准备工作：Winterconstructionpreparation..........................................................................34、冬季施工方法：Winterconstructionmethods.......................................................................................45、冬季施工人员保护：Protectionofwinterconstructionpersonnel.......................................................116、机械防寒：Protectionoftheequipments:............................................................................................117、冬季施工安全：Safetyassurancemeasuresforwinterconstruction....................................................128、冬期月燃油计划：Monthlyfuelconsumptionforecastduringwinterconstruction..............................141/15中国化学工程第三建设有限公司ChinaNationalChemicalEngineeringThirdConstructionCo.,Ltd(TCC)冬季施工Winterconstruction1、冬季施工的定义：Definitionofwinterconstruction:日平均气温连续5天低于5℃即进入冬季施工。winterconstructionarriveswhendailyaveragetemperatureisbelow5℃forfivecontinuousdays冬季施工时间：根据气象资料，OT现场10月上旬开始平均气温低于5℃，进入3月下旬平均气温便高于5℃。所以本项目的冬季施工周期为2010年10月上旬至2011年3月下旬。Winterconstructionduration:Accordingtoweatherinformation,averagetemperatureatOTsitewillbebelow5℃inearlyOctoberandwillbeabove5℃inlaterMarch.Therefore,thewinterconstructiondurationofthisprojectisfromearlyOctoberof2010tolaterMarchof2011.2、需冬季施工的内容：Aspertheconstructionprogressschedule根据施工进度计划，进入冬季施工的工作内容为worksshallbeperformedinwintertimeinclude:A、钢结构安装：Steelstructureinstallation:a)2#竖井及内部钢结构安装800吨；Install800tsteelstructureforShaftNO.2anditsinternalsteelstructure；.b)35KV电力架线变压器18台、围栏500米；18setsofpowertransformersfor35KVoverheadline.500mfence.c)锅炉房、大干燥房、换热站等区域钢结构的安装。B、设备的安装、调试1、2#井35.5m天轮支座、天轮及单轨吊梁的安装；2、锅炉房设备的安装、调试；3、消防水管的制安、消防水泵的安装、调试；4、管道的安装、试压及吹扫；这部分工作范围包括锅炉房等几个工号3、冬季施工准备工作：Winterconstructionpreparationa)根据施工进度计划,设备材料部门提前组织有关机具、外加剂和保温供暖设备、材料的进场。Aspertheconstructionprogressschedule,materialcontroldepartmentshallstarttoprepareforthemobilizationofrelativemachines,admixtures,heatingequipmentsandmaterialsinadvance.b)对各种加热的设备、保温材料仔细检查其安全可靠性。Checkcarefullyiftheheatingequipmentsandmaterialsaresafeandreliable.c)工地临时供水管道做好保温防冻工作。Temporarywaterpipesatsiteshallbethermalinsulatedcorrectly.3/15中国化学工程第三建设有限公司ChinaNationalChemicalEngineeringThirdConstructionCo.,Ltd(TCC)d)组织有关人员学习各施工方案，并向具体操作人员交底。Organizerelativepersonneltoreadallconstructionmethodstatements.Conductclarificationstospecificworkoperators.e)现场设置测温百叶箱，安排专人进行气温观测，做好记录并及时与施工各部门保持联系，报告天气情况，防止寒流袭击，积极采取防寒措施。Thermometersheltershallbeprovidedatsiteandattendedbyspecialpersonnelfortemperaturemonitoring.Establishclearrecordsandkeepcontactwithallconstructiondepartments.Notifytheweatherconditionandtakeactivemeasurestopreventanyattackofcoldcurrent.4、冬季施工方法：Winterconstructionmethodsa)钢结构工程Structuralsteelwork冬季施工过程如果出现风力超过6级及以上或者出现大雪天气应禁止吊装和焊接作业，在6级风力以下吊装作业或温度在-20℃以上的焊接应分别采取以下措施：Allliftingandweldingworkshallbeceasedifthewindlevelis6andaboveorheavysnowisencounteredduringwintertimeconstructionwork.Followingmeasuresshallbetakenforliftingworkwhichisperformedwhenthewindlevelisbelow6orweldingworkwhenthetemperatureisabove-20℃.①、吊装作业：吊装构件时，在考虑风力荷载系数的情况下首先确保吊装的构件不超吊车性能的负荷；现场应安排专业安全员进行安全监督，吊车作业回转半径内应拉设警戒线，禁止非作业人员进入吊装区域；构件吊装前应该先试吊，吊起时构件应在牵引绳的作用下缓慢上升，禁止大起大落的现象；现场安装操作人员应系挂好安全带，并正确使用安全带，尤其高空作业人员应系挂好防坠器，施工时应做到相互搭配，安全意识时刻高度集中，确保安全第一。Liftingwork:Itisveryimportanttoensureliftingweightofthemembersnotexceedcraneratedloadundertheconditionoftakingwindloadintoconsiderationduringtheliftingof8/15中国化学工程第三建设有限公司ChinaNationalChemicalEngineeringThirdConstructionCo.,Ltd(TCC)members;specialsafetyofficershallbeassignedforsitesafetymonitoring,warninglimitshallbesetupwithincraneoperationradius,andirrelevantpersonnelshallnotbeallowedtoenterintoliftingarea;performtrialliftingpriortomemberlifting,themembersshallbeslowlyraisedbyhaulagecablewithoutanysuddenraisingandlowering;safetybeltsshallbetiedandusedcorrectlybyinstallationworkers.Beawareofsafetyfirstatalltimesduringconstructionwork.②、焊接作业：构件焊接时，普通碳素钢焊接时低于-20℃和大气相对湿度超过90%环境下不得焊接；在风力超过8米/秒及以上的情况下，应用彩钢瓦或彩胶布搭设防风棚方可进行施焊，环境温度在-5℃～20℃时为了保证焊接质量,施焊时应根据现场气温、钢板厚度和材料特性等情况,采取相应局部预热措施。预热方式采用火焰加热，预热温度见下表:Weldingwork:Fortheweldingofcommoncarbonsteelmembers,noweldingisallowedwhenambienttemperatureisbelow-20℃andrelativehumidityexceed90%;sheltersformedbysteeltileorblanketclothmustbeprovidedwhenthewindspeedis8m/sandabove.Localpreheatingmeasuresshallbetakenwhentheambienttemperatureis-5℃～20℃andsitetemperature,thicknessofthesteelplatesandmaterialpropertieshaveallbeentakenintoconsideration.Flameheatingmethodwillbetakenforthepreheating.Refertofollowingtableforpreheatingtemperature:预热温度钢板厚度（mm）气温PreheatingSteelthicknessAmbienttemperaturetemperature不低于-10℃不预热,低于-10℃预热＜16Onlyconductpreheatingwhenthe100～150℃temperatureisbelow-10℃不低于-5℃不预热,低于-5℃预热16~24Onlyconductpreheatingwhenthe100～150℃temperatureisbelow