铁路客运线拌和站冬季施工技术交底（含示意图） 8页

沈丹铁路客运专线技术交底纪要SDTJ－3标段工程项目：编号：记录者：交底者：技术负责：技术部门：日期：feelfreetolistentotheirvoicesandhelpthemassessolveproblems,wewereofficiallyopenedonMay10"12345"Mayorcalls,formulatedrulesandregulations,equippedwithafull-timestaff,a24-houron-dutysystem,peopletocalltoreceive,reply,action,reminders,feedbackandsoon.Byyearend,handledthecrowdcalls1076,94.7%feedbackrate.　　ByMayorcallsactivecoordinationtosolvealargenumberofbearsontheimmediateinterestsofthepeopleandissuesofgreatlives,butalsoforleadershipresearchanddecisiontocollectalotofgoodideasandsuggestions,byallsectorsofthecommunityalike.Second,startMunicipalGovernmentAffairsHallbuilt.OnMay11,webuiltandlaunchedthecity-governmentlobby,weresettledin12departments,strictimplementationoffirstaskingdutysystem,servicesystem,systemofgratuitous,"receiving,internalcoordination,headofthewindowhandle,limitedtimeconcluded"one-stopservice.Bytheendoftodaytoacceptvarioustypesof3,273,originallyofupto100%.　　RunningGovernmentAffairsHall,theconvenienceofthemasses,promotingopenGovernment,improvetheinvestmentenvironmentandsolvetheirpracticalproblems,andsodidalotofwork,masses,servethecommunityfortheGovernmenttoplayaverygood"window,link,model".Third,createacitygovernmentpublicaffairsnetwork.WerelyontheGovernmentWebsite,wascompletedonMay24,theprovince'sfirstpublicaffairsnetwork.Over\n交底记录工程名称27#拌和站分部（分项）工程交底项目冬期施工图纸名称、图号交底内容一、冬期施工准备工作1.进入冬期施工前，应先做好下列准备工作（1）根据年度计划和施工组织设计，确定冬期施工的项目。（2）收集工地附近城市气象台（站）的历年气象资料，与当地气象台（站）联系，获取准确的气象预报资料；（3）配置有关工程材料、防寒物资、能源及施工机具设备。（4）编制冬期施工方案及技术措施，对有关人员进行技术交底和培训。2.配备搅拌用水加热装置采用在拌合楼旁设置一容积为5m3的加热罐，将拌合用水储存在加热罐中，并采用拌合站设置的2T蒸汽锅炉对其进行加热,具备一小时将5吨水从0℃加热至60℃的供热能力。锅炉供水系统与拌合站供水系统连接，并能根据实际气温情况控制加水量。减水剂储存罐设在专用库房中，库房内设置暖气，保证减水剂温度不低于10℃。3.对砂石料料仓进行围护保温冬期施工用混凝土骨料要进行有效加温、保湿措施，砂石料除正面其余部位采用用彩钢板对其完全封闭，料仓正面进行挂帘防护，防止雨雪浸入料堆。如《砂石料料仓仓门挂帘形式示意图》所示，并有一定的保温功能。并在料仓边部墙上采用Φ108的钢管连通蒸汽锅炉对其供热，保证其温度不低于10℃，具体布置图见《蒸汽管道布置图》feelfreetolistentotheirvoicesandhelpthemassessolveproblems,wewereofficiallyopenedonMay10"12345"Mayorcalls,formulatedrulesandregulations,equippedwithafull-timestaff,a24-houron-dutysystem,peopletocalltoreceive,reply,action,reminders,feedbackandsoon.Byyearend,handledthecrowdcalls1076,94.7%feedbackrate.　　ByMayorcallsactivecoordinationtosolvealargenumberofbearsontheimmediateinterestsofthepeopleandissuesofgreatlives,butalsoforleadershipresearchanddecisiontocollectalotofgoodideasandsuggestions,byallsectorsofthecommunityalike.Second,startMunicipalGovernmentAffairsHallbuilt.OnMay11,webuiltandlaunchedthecity-governmentlobby,weresettledin12departments,strictimplementationoffirstaskingdutysystem,servicesystem,systemofgratuitous,"receiving,internalcoordination,headofthewindowhandle,limitedtimeconcluded"one-stopservice.Bytheendoftodaytoacceptvarioustypesof3,273,originallyofupto100%.　　RunningGovernmentAffairsHall,theconvenienceofthemasses,promotingopenGovernment,improvetheinvestmentenvironmentandsolvetheirpracticalproblems,andsodidalotofwork,masses,servethecommunityfortheGovernmenttoplayaverygood"window,link,model".Third,createacitygovernmentpublicaffairsnetwork.WerelyontheGovernmentWebsite,wascompletedonMay24,theprovince'sfirstpublicaffairsnetwork.Over\n4.对上料仓斜皮带的保温措施对于上料仓、斜皮带位置采用彩钢板对其进行全封闭保温措施，并对上料仓采用毡布进行包裹，上料完成后，仓顶再进行覆盖，防止因时间过长产生霜冻现象。并在上料仓下部围墙部位加挂Φ108的钢管连通蒸汽锅炉对其供热。feelfreetolistentotheirvoicesandhelpthemassessolveproblems,wewereofficiallyopenedonMay10"12345"Mayorcalls,formulatedrulesandregulations,equippedwithafull-timestaff,a24-houron-dutysystem,peopletocalltoreceive,reply,action,reminders,feedbackandsoon.Byyearend,handledthecrowdcalls1076,94.7%feedbackrate.　　ByMayorcallsactivecoordinationtosolvealargenumberofbearsontheimmediateinterestsofthepeopleandissuesofgreatlives,butalsoforleadershipresearchanddecisiontocollectalotofgoodideasandsuggestions,byallsectorsofthecommunityalike.Second,startMunicipalGovernmentAffairsHallbuilt.OnMay11,webuiltandlaunchedthecity-governmentlobby,weresettledin12departments,strictimplementationoffirstaskingdutysystem,servicesystem,systemofgratuitous,"receiving,internalcoordination,headofthewindowhandle,limitedtimeconcluded"one-stopservice.Bytheendoftodaytoacceptvarioustypesof3,273,originallyofupto100%.　　RunningGovernmentAffairsHall,theconvenienceofthemasses,promotingopenGovernment,improvetheinvestmentenvironmentandsolvetheirpracticalproblems,andsodidalotofwork,masses,servethecommunityfortheGovernmenttoplayaverygood"window,link,model".Third,createacitygovernmentpublicaffairsnetwork.WerelyontheGovernmentWebsite,wascompletedonMay24,theprovince'sfirstpublicaffairsnetwork.Over\n5.储备砂石料冬期河砂因冰冻封河不能生产，故入冬前要提前备齐冬施混凝土所用河砂。料场面积有限的搅拌站调整砂、石骨料的比例，满足正常生产的前提下尽量多储备河砂。原材料进场加强质量监控，严格按检验批报检的同时，做到逐车量方并和样本对比，不合格材料严禁进场。二、冬期施工方案1．砼冬期施工原则（1）保证砼在初凝及强度增长早期过程不受冻，且砼受冻时临界强度应达到设计强度的70%以上。（2）砼在低温条件下强度能继续发展，并能满足施工工期的要求以及设计强度的要求。（3）在杜绝砼早期受冻的前提下，在最短的施工期限内，以最低的冬期施工费用，获得优良的施工质量。（4）施工方案做到可靠、可行，经济合理，可操作性强。2.砼冬期施工方案feelfreetolistentotheirvoicesandhelpthemassessolveproblems,wewereofficiallyopenedonMay10"12345"Mayorcalls,formulatedrulesandregulations,equippedwithafull-timestaff,a24-houron-dutysystem,peopletocalltoreceive,reply,action,reminders,feedbackandsoon.Byyearend,handledthecrowdcalls1076,94.7%feedbackrate.　　ByMayorcallsactivecoordinationtosolvealargenumberofbearsontheimmediateinterestsofthepeopleandissuesofgreatlives,butalsoforleadershipresearchanddecisiontocollectalotofgoodideasandsuggestions,byallsectorsofthecommunityalike.Second,startMunicipalGovernmentAffairsHallbuilt.OnMay11,webuiltandlaunchedthecity-governmentlobby,weresettledin12departments,strictimplementationoffirstaskingdutysystem,servicesystem,systemofgratuitous,"receiving,internalcoordination,headofthewindowhandle,limitedtimeconcluded"one-stopservice.Bytheendoftodaytoacceptvarioustypesof3,273,originallyofupto100%.　　RunningGovernmentAffairsHall,theconvenienceofthemasses,promotingopenGovernment,improvetheinvestmentenvironmentandsolvetheirpracticalproblems,andsodidalotofwork,masses,servethecommunityfortheGovernmenttoplayaverygood"window,link,model".Third,createacitygovernmentpublicaffairsnetwork.WerelyontheGovernmentWebsite,wascompletedonMay24,theprovince'sfirstpublicaffairsnetwork.Over\n根据施工工期的要求及本项目所在地季节气温情况，并根据施工季节气温的不同，采用综合蓄热养护法进行砼冬期施工，即：原材料（水）加热+高效减水剂+保温养护。冬期砼养生过程中要对砼温度进行全过程的监控。（1）控制原材料质量水泥严格遵守指挥部的规定，选用甲控物资。细骨料采用级配良好的硬质、洁净的中砂，不含有冰块、雪团，含泥量应满足规范要求。贮备场地，选择地势较高，不积水的地方。粗骨料采用级配良好，硬质洁净、耐冻融的石料，含泥量不大于1%。并存放在地势较高，不积水的地方。（2）冬期施工配合比冬期施工配合比以试验室所提供施工配合比为准。（3）混凝土搅拌、运输要求3、混凝土搅拌、运输要求砼搅拌站严格按照试验室发出的配合比通知单进行生产，不得擅自修改配合比。搅拌前先用热水冲洗搅拌机10min，搅拌时间为常温搅拌时间的1.5倍。有效控制砼出机温度，主要是水加热，为避免混凝土发生速凝或者假凝现象，太热的水部要直接与水泥或外加剂接触。搅拌时投料顺序为粗骨料→细骨料→水（搅拌30s）→水泥和掺合料→外加剂。生产期间，派专职人员负责骨料仓的下料，以清除砂石冻块。搅拌站要与气象单位保持密切联系，对预报气温仔细分析。混凝土运输选用能确保浇筑工作连续进行、运输能力与混凝土搅拌机的搅拌能力相匹配的运输设备。feelfreetolistentotheirvoicesandhelpthemassessolveproblems,wewereofficiallyopenedonMay10"12345"Mayorcalls,formulatedrulesandregulations,equippedwithafull-timestaff,a24-houron-dutysystem,peopletocalltoreceive,reply,action,reminders,feedbackandsoon.Byyearend,handledthecrowdcalls1076,94.7%feedbackrate.　　ByMayorcallsactivecoordinationtosolvealargenumberofbearsontheimmediateinterestsofthepeopleandissuesofgreatlives,butalsoforleadershipresearchanddecisiontocollectalotofgoodideasandsuggestions,byallsectorsofthecommunityalike.Second,startMunicipalGovernmentAffairsHallbuilt.OnMay11,webuiltandlaunchedthecity-governmentlobby,weresettledin12departments,strictimplementationoffirstaskingdutysystem,servicesystem,systemofgratuitous,"receiving,internalcoordination,headofthewindowhandle,limitedtimeconcluded"one-stopservice.Bytheendoftodaytoacceptvarioustypesof3,273,originallyofupto100%.　　RunningGovernmentAffairsHall,theconvenienceofthemasses,promotingopenGovernment,improvetheinvestmentenvironmentandsolvetheirpracticalproblems,andsodidalotofwork,masses,servethecommunityfortheGovernmenttoplayaverygood"window,link,model".Third,createacitygovernmentpublicaffairsnetwork.WerelyontheGovernmentWebsite,wascompletedonMay24,theprovince'sfirstpublicaffairsnetwork.Over\n运输混凝土过程中，保持运输混凝土的道路平坦畅通，保证混凝土在运输过程中保持均匀性，运到浇筑地点时不分层、不离析、不漏浆，并具有要求的坍落度和含气量等工作性能。砼的运输过程快装快卸，不得中途转运或受阻，运输混凝土过程中应对运输设备采取保温措施，再混凝土罐车外面包裹棉被保温防寒。尽量减少混凝土的转载次数和运输时间。从搅拌机卸出混凝土到混凝土浇筑完毕的延续时间以不影响混凝土的各项性能为限。罐车运输混凝土过程中宜慢速搅拌混凝土。搅拌速度应以2～4转/分钟为宜。混凝土的装载量约为搅拌筒几何容量的2/3。当罐车到达浇筑现场时，应使罐车高速旋转20～30s，再将混凝土拌和物喂入泵车受料斗或混凝土料斗。保证混凝土的均匀性和坍落度。（4）混凝土试件留置方式按现行标准TB10210-2001规定制作标准养护试件，还要根据养护、拆模和承受荷载的需要，增加与结构同条件养护的施工试件不小于2组（此种试件应在解冻后方可试压）；再按《砼强度检验评定标准》进行合格性判定。三、拌合站安全管理保证措施1.拌合站安全管理　拌合站内的各种材料、砼构件等存放场地都要符合安全要求，并加强管理。加强季节性劳动保护工作。霜雪天后要及时清扫。大风雪后及时检查脚手架，防止高空坠落事故发生，并应保证消防道路畅通。将站内的积水或积雪应及时清理干净，不应使场地造成积水现象而导致因温度过低时而结冰，造成安全隐患。冬期施工时，要采取防滑措施。冬期施工人员要加强劳动保护，上班穿棉衣，戴安全帽和棉手套。上下立体交叉作业的出入口楼梯，井架周围应有防护棚或其它隔离措施。拌合站临时水管应埋入土中或用草包等保温材料包扎，外抹纸筋，水箱存水，下班前应放尽。2.电气安全管理feelfreetolistentotheirvoicesandhelpthemassessolveproblems,wewereofficiallyopenedonMay10"12345"Mayorcalls,formulatedrulesandregulations,equippedwithafull-timestaff,a24-houron-dutysystem,peopletocalltoreceive,reply,action,reminders,feedbackandsoon.Byyearend,handledthecrowdcalls1076,94.7%feedbackrate.　　ByMayorcallsactivecoordinationtosolvealargenumberofbearsontheimmediateinterestsofthepeopleandissuesofgreatlives,butalsoforleadershipresearchanddecisiontocollectalotofgoodideasandsuggestions,byallsectorsofthecommunityalike.Second,startMunicipalGovernmentAffairsHallbuilt.OnMay11,webuiltandlaunchedthecity-governmentlobby,weresettledin12departments,strictimplementationoffirstaskingdutysystem,servicesystem,systemofgratuitous,"receiving,internalcoordination,headofthewindowhandle,limitedtimeconcluded"one-stopservice.Bytheendoftodaytoacceptvarioustypesof3,273,originallyofupto100%.　　RunningGovernmentAffairsHall,theconvenienceofthemasses,promotingopenGovernment,improvetheinvestmentenvironmentandsolvetheirpracticalproblems,andsodidalotofwork,masses,servethecommunityfortheGovernmenttoplayaverygood"window,link,model".Third,createacitygovernmentpublicaffairsnetwork.WerelyontheGovernmentWebsite,wascompletedonMay24,theprovince'sfirstpublicaffairsnetwork.Over\n在冬期施工防案和施工组织时间中，必须有拌合站电器线路及拌合站位置平面图。拌合站应设电工负责安装、维护和管理用电设备，严禁非电工人员随意拆改。拌合站严禁使用裸线。电线铺设要防砸、防碾压，防止电线冻结在冰雪之中。大风雪后，应对供电线路进行检查，防止断线造成触电事故。用电设备采用专用电闸箱。强电源与弱电源的插销要区分开，防止误操作造成事故。3.解除冬期施工后的安全管理随着气温的回升，连续七昼夜不出现负温度方可解除冬施。但应注意材料堆放场、大模板堆放场应进行检查和整理。防止垛堆、没半和构件在土层冻融中倒塌。4.冬期施工的防火拌合站内严禁用明火取暖，应订出具体防火安全注意事项，并将责任落实到人。电气设备，开关箱应有防护罩，通电导线要整理架空，电线包布应进行全面检查，务必保持良好的绝缘效果。拌合站的易燃，易爆及有毒物品应有专人保管，妥善安置。明火作业应实行动火证审批制度，并配置必要的安全防火用品。遵循平时施工的安全、防火等各项管理制度，做到“预防为主”。feelfreetolistentotheirvoicesandhelpthemassessolveproblems,wewereofficiallyopenedonMay10"12345"Mayorcalls,formulatedrulesandregulations,equippedwithafull-timestaff,a24-houron-dutysystem,peopletocalltoreceive,reply,action,reminders,feedbackandsoon.Byyearend,handledthecrowdcalls1076,94.7%feedbackrate.　　ByMayorcallsactivecoordinationtosolvealargenumberofbearsontheimmediateinterestsofthepeopleandissuesofgreatlives,butalsoforleadershipresearchanddecisiontocollectalotofgoodideasandsuggestions,byallsectorsofthecommunityalike.Second,startMunicipalGovernmentAffairsHallbuilt.OnMay11,webuiltandlaunchedthecity-governmentlobby,weresettledin12departments,strictimplementationoffirstaskingdutysystem,servicesystem,systemofgratuitous,"receiving,internalcoordination,headofthewindowhandle,limitedtimeconcluded"one-stopservice.Bytheendoftodaytoacceptvarioustypesof3,273,originallyofupto100%.　　RunningGovernmentAffairsHall,theconvenienceofthemasses,promotingopenGovernment,improvetheinvestmentenvironmentandsolvetheirpracticalproblems,andsodidalotofwork,masses,servethecommunityfortheGovernmenttoplayaverygood"window,link,model".Third,createacitygovernmentpublicaffairsnetwork.WerelyontheGovernmentWebsite,wascompletedonMay24,theprovince'sfirstpublicaffairsnetwork.Over\n接底单位及签字接底单位负责人接底项目日期接底者签字顺号姓名职务或职名所属单位feelfreetolistentotheirvoicesandhelpthemassessolveproblems,wewereofficiallyopenedonMay10"12345"Mayorcalls,formulatedrulesandregulations,equippedwithafull-timestaff,a24-houron-dutysystem,peopletocalltoreceive,reply,action,reminders,feedbackandsoon.Byyearend,handledthecrowdcalls1076,94.7%feedbackrate.　　ByMayorcallsactivecoordinationtosolvealargenumberofbearsontheimmediateinterestsofthepeopleandissuesofgreatlives,butalsoforleadershipresearchanddecisiontocollectalotofgoodideasandsuggestions,byallsectorsofthecommunityalike.Second,startMunicipalGovernmentAffairsHallbuilt.OnMay11,webuiltandlaunchedthecity-governmentlobby,weresettledin12departments,strictimplementationoffirstaskingdutysystem,servicesystem,systemofgratuitous,"receiving,internalcoordination,headofthewindowhandle,limitedtimeconcluded"one-stopservice.Bytheendoftodaytoacceptvarioustypesof3,273,originallyofupto100%.　　RunningGovernmentAffairsHall,theconvenienceofthemasses,promotingopenGovernment,improvetheinvestmentenvironmentandsolvetheirpracticalproblems,andsodidalotofwork,masses,servethecommunityfortheGovernmenttoplayaverygood"window,link,model".Third,createacitygovernmentpublicaffairsnetwork.WerelyontheGovernmentWebsite,wascompletedonMay24,theprovince'sfirstpublicaffairsnetwork.Over