内蒙古钢筋混凝土盖板涵施工技术交底 12页

技术交底书DyK114+296(1-3m)钢筋混凝土盖板涵施工技术交底书文件编号2012-015交底：复核：批准：中铁十五局呼准铁路托周段增建二线项目经理部2012年9月1日massestour;Increasetheintensityoftheinvestigationandmediationofdisputes,fullimplementationofthebacklogforprocessingoflettersandcallssystemofleadingcadres;Keepagainstallformsofillegalandcriminalactivitiesofhighhanded,ensureagoodsocialorder;Strengthenthecollectionofintelligenceanalysis,closelyguardedactivitiesofevilcults;Fullimplementationofthesocialsecuritypreventionandcontrolinkeyareasandthetreatmentofseriouspublicsecurityissuestotroubleshoot,ensuringharmonyandstability.Fourfurtherstrengthenpublicityandideologicalwork.Typicalhighlightsofselectedtreecultivation,andmoralexemplarsintheprovincedonothaveemerged,respectingthemoralmodelHangLiPoh,theprovincialworkerYuYoubo,State-levelmodelworkerFanYouzhi,HuJingqiu,includingYunnan,nujiang'sfinest,promotedthetheme,thecombinationofapositiveenergy.HunansatelliteTVinwangjiduVillagecompletedthemetamorphosisoftheshow'sfilming,silentnunutelevisionprogramairedthe"busybody"LaoLi,ancientvillage,woodandJiacunandXXmvillageswereratedasprovincialandStatelevelcivilizedvillage.XXinternationalvisibilityandreputationfurtherenhanced.Inaddition,wecontinuetopromotedemocracy,people'scongresses,politicalconsultativeconferenceroleplay,gongqingfu,amassorganizationtobetterservethescientificdevelopment.Further-11-\n技术交底书DyK114+296(1-3m)盖板涵施工技术交底书编号：2012-015工程名称DyK114+296盖板涵交底日期2012年9月1日交底名称DyK114+296(1-3m)盖板涵施工技术交底一.工程概况本工程为呼准线托克托至周家湾段增建第二线线下工程，位于内蒙古自治区呼和浩特市托克托县和鄂尔多斯市准格尔旗境内。本标段为第V标段，施工里程为DyK111+960-DyK117+150。本涵洞中心里程为DyK114+296,为1孔3m钢筋混凝土盖板涵与线路斜交45°涵长77.58m，涵身基础1.5m厚，净高3.5m，涵身共21节，其中4m长的共10节，3m长的共11节。此涵与快速通道既有管涵顺接，主要为排洪而设。二.编制范围DyK114+296(1-3m)钢筋混凝土盖板涵。三.编制依据1.DyK114+296(1-3m)钢筋混凝土盖板涵设计图及参考壹桥参（2006）5212-I-36。2.《铁路桥涵工程施工质量验收标准》。3.《铁路混凝土工程施工质量验收标准》。4.《铁路混凝土与砌体工程施工质量验收标准》。5.massestour;Increasetheintensityoftheinvestigationandmediationofdisputes,fullimplementationofthebacklogforprocessingoflettersandcallssystemofleadingcadres;Keepagainstallformsofillegalandcriminalactivitiesofhighhanded,ensureagoodsocialorder;Strengthenthecollectionofintelligenceanalysis,closelyguardedactivitiesofevilcults;Fullimplementationofthesocialsecuritypreventionandcontrolinkeyareasandthetreatmentofseriouspublicsecurityissuestotroubleshoot,ensuringharmonyandstability.Fourfurtherstrengthenpublicityandideologicalwork.Typicalhighlightsofselectedtreecultivation,andmoralexemplarsintheprovincedonothaveemerged,respectingthemoralmodelHangLiPoh,theprovincialworkerYuYoubo,State-levelmodelworkerFanYouzhi,HuJingqiu,includingYunnan,nujiang'sfinest,promotedthetheme,thecombinationofapositiveenergy.HunansatelliteTVinwangjiduVillagecompletedthemetamorphosisoftheshow'sfilming,silentnunutelevisionprogramairedthe"busybody"LaoLi,ancientvillage,woodandJiacunandXXmvillageswereratedasprovincialandStatelevelcivilizedvillage.XXinternationalvisibilityandreputationfurtherenhanced.Inaddition,wecontinuetopromotedemocracy,people'scongresses,politicalconsultativeconferenceroleplay,gongqingfu,amassorganizationtobetterservethescientificdevelopment.Further-11-\n技术交底书我单位企业管理水平、劳力设备技术能力、铁路施工及类似工程施工经验。四、涵洞工程施工方案、方法、工艺及措施4.1.总体规划由于薛家湾隧道进口施工便道经过DyK114+296盖板涵上方加之本涵洞涵身较长，故此涵洞采用上、下两幅分段施工，即先完成上幅涵洞施工，然后将施工便道移至上幅，再进行下幅涵洞的施工，并与快速通道管涵顺接。4.2.施工准备开工前，根据设计图纸，结合现场实际地形、地质情况，对涵洞的位置、方向、基底尺寸、高程等进行复核、定位。当涵底设计高、涵位、角度等与实际不符时，经报请设计单位、监理同意后，根据实际作适当调整。此涵为渠中修建的涵洞，先在涵洞上游不影响施工的地方挖好集水坑，用污水泵排水，同时根据涵洞基坑四周地形，做好地面防排水工作。4.3.盖板涵施工工序流程施工准备→测量放线→基坑开挖→基础→边墙→盖板安装→附属工程→回填→完工验收。施工工序流程图如下：massestour;Increasetheintensityoftheinvestigationandmediationofdisputes,fullimplementationofthebacklogforprocessingoflettersandcallssystemofleadingcadres;Keepagainstallformsofillegalandcriminalactivitiesofhighhanded,ensureagoodsocialorder;Strengthenthecollectionofintelligenceanalysis,closelyguardedactivitiesofevilcults;Fullimplementationofthesocialsecuritypreventionandcontrolinkeyareasandthetreatmentofseriouspublicsecurityissuestotroubleshoot,ensuringharmonyandstability.Fourfurtherstrengthenpublicityandideologicalwork.Typicalhighlightsofselectedtreecultivation,andmoralexemplarsintheprovincedonothaveemerged,respectingthemoralmodelHangLiPoh,theprovincialworkerYuYoubo,State-levelmodelworkerFanYouzhi,HuJingqiu,includingYunnan,nujiang'sfinest,promotedthetheme,thecombinationofapositiveenergy.HunansatelliteTVinwangjiduVillagecompletedthemetamorphosisoftheshow'sfilming,silentnunutelevisionprogramairedthe"busybody"LaoLi,ancientvillage,woodandJiacunandXXmvillageswereratedasprovincialandStatelevelcivilizedvillage.XXinternationalvisibilityandreputationfurtherenhanced.Inaddition,wecontinuetopromotedemocracy,people'scongresses,politicalconsultativeconferenceroleplay,gongqingfu,amassorganizationtobetterservethescientificdevelopment.Further-11-\n技术交底书盖板涵施工工艺流程图挖截排水沟施工准备基坑开挖浇筑基础浇筑边墙预制盖板安装防水层、沉降缝施工端翼墙及铺砌施工回填（1）盖板涵基坑开挖A.基坑为土质时采取以机械开挖为主、人工开挖为辅，基坑采用放坡开挖，具体放坡系数根据现场土质而定必要时加设挡板,基坑开挖至距设计标高20-30cm时，由人工进行清理，以免机械扰动基底原状土，造成承载力下降；基坑地质为石质时，采用风枪钻孔，小炮浅孔松动爆破，人工凿石检底，坑壁局部加以修凿。B.施工准备：做好施工测量放样，设置基坑中心线、方向和高程的测量控制桩，用木桩挂线或白灰标识开挖范围。massestour;Increasetheintensityoftheinvestigationandmediationofdisputes,fullimplementationofthebacklogforprocessingoflettersandcallssystemofleadingcadres;Keepagainstallformsofillegalandcriminalactivitiesofhighhanded,ensureagoodsocialorder;Strengthenthecollectionofintelligenceanalysis,closelyguardedactivitiesofevilcults;Fullimplementationofthesocialsecuritypreventionandcontrolinkeyareasandthetreatmentofseriouspublicsecurityissuestotroubleshoot,ensuringharmonyandstability.Fourfurtherstrengthenpublicityandideologicalwork.Typicalhighlightsofselectedtreecultivation,andmoralexemplarsintheprovincedonothaveemerged,respectingthemoralmodelHangLiPoh,theprovincialworkerYuYoubo,State-levelmodelworkerFanYouzhi,HuJingqiu,includingYunnan,nujiang'sfinest,promotedthetheme,thecombinationofapositiveenergy.HunansatelliteTVinwangjiduVillagecompletedthemetamorphosisoftheshow'sfilming,silentnunutelevisionprogramairedthe"busybody"LaoLi,ancientvillage,woodandJiacunandXXmvillageswereratedasprovincialandStatelevelcivilizedvillage.XXinternationalvisibilityandreputationfurtherenhanced.Inaddition,wecontinuetopromotedemocracy,people'scongresses,politicalconsultativeconferenceroleplay,gongqingfu,amassorganizationtobetterservethescientificdevelopment.Further-11-\n技术交底书C.根据盖板涵位置的地质情况，基坑采用放波开挖，开挖过程中应检查基坑的平面位置、高程、边坡、排水系统，并随时观测基坑边坡和地面的变化，基坑开挖尺寸为盖板涵结构物底板尺寸+100cm工作面宽度，基底开挖标高应按照流水面坡度严格控制，挖基弃土不得妨碍施工，弃土堆坡脚距坑顶缘的距离不小于基坑深度，严格限制坑顶堆土等地面荷载。基坑开挖至设计标高后及时进行下道工序的施工，避免基底长时间暴漏或受雨淋水泡。D.基坑排水：基坑开挖随时做好排水工作，挖至坑底设计标高后沿基坑四周设排水沟，并及时抽干坑内积水，保证开挖后基底不被水浸泡。E.基底处理：开挖接近基底标高时，保留20cm左右一层，在基础施工前进行人工挖除。F.基坑挖至设计标高后，先由试验工程师进行基底承载力检测，再由测量工程师复核基坑尺寸和标高，符合要求后报监理工程师，合格后，进入下道施工工序。G.基坑开挖过程中应严防地面水流入基坑内。基坑外截、排水设施要保持到基坑回填后，基坑开挖施工中，须注意保护定位桩，水准点（2）盖板涵基础施工A.基础模板安装massestour;Increasetheintensityoftheinvestigationandmediationofdisputes,fullimplementationofthebacklogforprocessingoflettersandcallssystemofleadingcadres;Keepagainstallformsofillegalandcriminalactivitiesofhighhanded,ensureagoodsocialorder;Strengthenthecollectionofintelligenceanalysis,closelyguardedactivitiesofevilcults;Fullimplementationofthesocialsecuritypreventionandcontrolinkeyareasandthetreatmentofseriouspublicsecurityissuestotroubleshoot,ensuringharmonyandstability.Fourfurtherstrengthenpublicityandideologicalwork.Typicalhighlightsofselectedtreecultivation,andmoralexemplarsintheprovincedonothaveemerged,respectingthemoralmodelHangLiPoh,theprovincialworkerYuYoubo,State-levelmodelworkerFanYouzhi,HuJingqiu,includingYunnan,nujiang'sfinest,promotedthetheme,thecombinationofapositiveenergy.HunansatelliteTVinwangjiduVillagecompletedthemetamorphosisoftheshow'sfilming,silentnunutelevisionprogramairedthe"busybody"LaoLi,ancientvillage,woodandJiacunandXXmvillageswereratedasprovincialandStatelevelcivilizedvillage.XXinternationalvisibilityandreputationfurtherenhanced.Inaddition,wecontinuetopromotedemocracy,people'scongresses,politicalconsultativeconferenceroleplay,gongqingfu,amassorganizationtobetterservethescientificdevelopment.Further-11-\n技术交底书基础模板采用钢模板，模板可采用拼装，在水平和竖直拼缝内贴胶带纸，拼装应平整，接缝严密，不漏浆，保证结构物外露面美观，线条顺畅，模板采用钢管、拉杆和斜撑进行加固，拉杆按钢模预留的拉杆眼布置，若有必要可加眼处理。B.基础混凝土浇筑基础砼采用现场浇筑，基础混凝土浇筑前须进行立模、放线、配合比等检查，确认符合要求后方可浇筑混凝土。浇筑要符合下列规定：a.混凝土浇筑必须在基坑无水的情况下进行，如坑底有水，先在下游出口处挖一积水坑，用水泵将水排出，再进行混凝土的浇筑施工。b.混凝土浇筑前，先将模板上的污垢清扫干净，并在模板内侧表面色涂脱模剂。c.混凝土运至浇筑地点，要尽快浇筑，减少热损失。当混凝土因凝固降低流动性后，不得二次加水拌合使用，应作废料处理。d.混凝土浇筑时的自由倾落高度不得大于2m，当大于2m时，采用滑槽入模浇筑。e.混凝土要分层连续浇筑，其分层厚度不得大于30cm，当因故间歇时，不得超过2h，当超过2h时，要按浇筑中断处理，同时要留置施工缝。施工缝的平面要与结构的轴线相垂直，在施工缝埋入适量的接茬钢筋，并使其长度露出前层混凝土外的一半左右，继续浇筑时，先在横向施工缝铺一层厚15mm并与混凝土灰沙比相同、水灰比略小的水泥砂浆，竖向施工缝可刷一层水灰比为0.3左右的水泥浆后再进行混凝土的浇筑。f.混凝土采用插入式振捣器振捣。massestour;Increasetheintensityoftheinvestigationandmediationofdisputes,fullimplementationofthebacklogforprocessingoflettersandcallssystemofleadingcadres;Keepagainstallformsofillegalandcriminalactivitiesofhighhanded,ensureagoodsocialorder;Strengthenthecollectionofintelligenceanalysis,closelyguardedactivitiesofevilcults;Fullimplementationofthesocialsecuritypreventionandcontrolinkeyareasandthetreatmentofseriouspublicsecurityissuestotroubleshoot,ensuringharmonyandstability.Fourfurtherstrengthenpublicityandideologicalwork.Typicalhighlightsofselectedtreecultivation,andmoralexemplarsintheprovincedonothaveemerged,respectingthemoralmodelHangLiPoh,theprovincialworkerYuYoubo,State-levelmodelworkerFanYouzhi,HuJingqiu,includingYunnan,nujiang'sfinest,promotedthetheme,thecombinationofapositiveenergy.HunansatelliteTVinwangjiduVillagecompletedthemetamorphosisoftheshow'sfilming,silentnunutelevisionprogramairedthe"busybody"LaoLi,ancientvillage,woodandJiacunandXXmvillageswereratedasprovincialandStatelevelcivilizedvillage.XXinternationalvisibilityandreputationfurtherenhanced.Inaddition,wecontinuetopromotedemocracy,people'scongresses,politicalconsultativeconferenceroleplay,gongqingfu,amassorganizationtobetterservethescientificdevelopment.Further-11-\n技术交底书g.基础混凝土在浇筑完毕后，要在基顶与涵身连接处预留接茬钢筋（螺纹钢），钢筋直径不小于16mm，间距不大于20倍的钢筋直径，埋入和露出长度不小于钢筋直径的30倍。C.混凝土的养护及拆模：a.混凝土按两阶段养生法进行养护：混凝土浇筑完毕后，在混凝土结构物外露面包裹一层蓄水物质（如麻袋片或土工布），再用塑料薄膜包裹密封严实，养生期间，需对蓄水物质定时注水保证持续湿润状态；脱模后，用塑料薄膜将混凝土结构表面包裹，以封闭内部残余水分不被蒸发，保证混凝土后期水化的持续进行。b.混凝土拆模：混凝土强度达到5MPa以上，且其表面及棱角不因拆模而受损时，方可拆模。拆除模板后，继续对混凝土进行养护。D.基础沉降缝施工：沉降缝必须按施工图要求选材和施工，工序完毕须进行质量检查、监理签认。混凝土处沉降缝采用沥青浸制木板，在混凝土浇注前安放准确，基础沉降缝采用沥青浸制木板，并保持缝内干净、无杂物，然后再填塞M10水泥砂浆和沥青浸制麻筋。沉降缝端面竖直、平整，在同一断面上，上下不得交错、扭曲，填缝料保证填塞密实。(3)涵身混凝土浇筑：A.涵身模板安装：涵身模板采用组合钢模板，安装方法及要求与基础模板安装方法同理。安装模板时必须放样准确。测控点必须保护好以便随时校测。安装完毕后报监理工程师检查，合格后再进行涵身混凝土的浇筑施工。massestour;Increasetheintensityoftheinvestigationandmediationofdisputes,fullimplementationofthebacklogforprocessingoflettersandcallssystemofleadingcadres;Keepagainstallformsofillegalandcriminalactivitiesofhighhanded,ensureagoodsocialorder;Strengthenthecollectionofintelligenceanalysis,closelyguardedactivitiesofevilcults;Fullimplementationofthesocialsecuritypreventionandcontrolinkeyareasandthetreatmentofseriouspublicsecurityissuestotroubleshoot,ensuringharmonyandstability.Fourfurtherstrengthenpublicityandideologicalwork.Typicalhighlightsofselectedtreecultivation,andmoralexemplarsintheprovincedonothaveemerged,respectingthemoralmodelHangLiPoh,theprovincialworkerYuYoubo,State-levelmodelworkerFanYouzhi,HuJingqiu,includingYunnan,nujiang'sfinest,promotedthetheme,thecombinationofapositiveenergy.HunansatelliteTVinwangjiduVillagecompletedthemetamorphosisoftheshow'sfilming,silentnunutelevisionprogramairedthe"busybody"LaoLi,ancientvillage,woodandJiacunandXXmvillageswereratedasprovincialandStatelevelcivilizedvillage.XXinternationalvisibilityandreputationfurtherenhanced.Inaddition,wecontinuetopromotedemocracy,people'scongresses,politicalconsultativeconferenceroleplay,gongqingfu,amassorganizationtobetterservethescientificdevelopment.Further-11-\n技术交底书模板及支架要有足够的强度、刚度及稳定性，能够承载所浇筑混凝土的侧压力及施工荷载，保证结构尺寸的正确。模板及支架必须安置于符合设计的可靠基础上，并具有足够的支撑面积和防排水措施。模板安装必须牢固可靠，必须做到不跑模，不胀模。B.涵身混凝土浇筑：a.试验检验：配合比由试验室提供，计量控制到位，入模前温度经过测试，对前几项工序的检测签认已经完成，对于泌水、离析、露筋、蜂窝、麻面等将出现的问题已经有了预防措施。在此情况下方可灌筑混凝土。b.混凝土浇筑前在模板表面满涂脱模剂，并将基础混凝土与涵身及翼墙接触处浮渣清除，用水冲净、湿润，但不得存有积水。c.新混凝土浇筑前，在横向施工缝处先铺一层厚15mm并与混凝土灰砂比相同、水灰比略小的水泥砂浆，竖向施工缝处可刷一层水灰比为0.3左右的薄水泥浆。d.混凝土运至浇筑地点，尽快浇筑，减少热损失。当混凝土因凝固而降低流动性后，不得二次加水拌合使用。在浇筑过程中,随时检查模板、支架、支撑结构的可靠程度，模板缝是否漏浆。发现问题，要及时处理,并作好记录。e.混凝土分层连续浇筑，其分层厚度为30cm；采用振捣器振捣。砼的浇筑和捣固方法同基础混凝土施工方法一样，需要注意的是施工缝处的新层混凝土必须捣实。f.振捣与养护：混凝土操作人员必须是专业人员且须持证上岗，振捣时须均匀以达密应，防止过振、漏振。养护待混凝土收浆、不起皮时用薄膜覆盖严密，洒水养护不得少于14天。massestour;Increasetheintensityoftheinvestigationandmediationofdisputes,fullimplementationofthebacklogforprocessingoflettersandcallssystemofleadingcadres;Keepagainstallformsofillegalandcriminalactivitiesofhighhanded,ensureagoodsocialorder;Strengthenthecollectionofintelligenceanalysis,closelyguardedactivitiesofevilcults;Fullimplementationofthesocialsecuritypreventionandcontrolinkeyareasandthetreatmentofseriouspublicsecurityissuestotroubleshoot,ensuringharmonyandstability.Fourfurtherstrengthenpublicityandideologicalwork.Typicalhighlightsofselectedtreecultivation,andmoralexemplarsintheprovincedonothaveemerged,respectingthemoralmodelHangLiPoh,theprovincialworkerYuYoubo,State-levelmodelworkerFanYouzhi,HuJingqiu,includingYunnan,nujiang'sfinest,promotedthetheme,thecombinationofapositiveenergy.HunansatelliteTVinwangjiduVillagecompletedthemetamorphosisoftheshow'sfilming,silentnunutelevisionprogramairedthe"busybody"LaoLi,ancientvillage,woodandJiacunandXXmvillageswereratedasprovincialandStatelevelcivilizedvillage.XXinternationalvisibilityandreputationfurtherenhanced.Inaddition,wecontinuetopromotedemocracy,people'scongresses,politicalconsultativeconferenceroleplay,gongqingfu,amassorganizationtobetterservethescientificdevelopment.Further-11-\n技术交底书e.涵身侧模应在混凝土强度达到2.5MPa以上方可拆模，涵身砼的养护和拆模方法同基础砼的养护和拆模方法一样。C.涵身沉降缝施工：涵洞分节处、交接处均须设置沉降缝，经检验合格的木板须与模板同步，且须挂线，缝宽一般为2cm,待构筑物达到养护强度后，在干燥状态下进行沉降缝填塞。边墙沉降缝木板固定要牢，混凝土浇筑要对称进行，防止沉降缝泡沫板不垂直。沉降缝要求端面垂直、平整，上下不得交错；基础和涵身沉降缝必须保持在同一竖直面上，不得错牙。施工时，先将沉降缝内的杂物清除并保持干燥，再填塞密实。填塞方法及填塞材料严格按照设计图进行施工。（4）盖板涵盖板施工此涵洞盖板为C30钢筋混凝土盖板，采用B32式预制盖板，盖板配筋参考壹桥参（2006）5212-I-36，盖板在预制场集中预制，吊车吊装就位。在涵洞工点附近选一处平地作为盖板预制场，提前对场地进行整平，硬化。钢筋在进场前请监理工程师按照抽验批次进行抽验，合格后方能投入使用，必须严格按照施工图绑扎钢筋，钢筋堆放要离地20cm以上，并用彩条布进行覆盖。钢筋骨架加工完毕后运至预制场模型内，每个模型底部设置垫块，钢筋四周不得与模板接触，确保钢筋保护层的厚度，浇筑混凝土前涂刷脱模剂。massestour;Increasetheintensityoftheinvestigationandmediationofdisputes,fullimplementationofthebacklogforprocessingoflettersandcallssystemofleadingcadres;Keepagainstallformsofillegalandcriminalactivitiesofhighhanded,ensureagoodsocialorder;Strengthenthecollectionofintelligenceanalysis,closelyguardedactivitiesofevilcults;Fullimplementationofthesocialsecuritypreventionandcontrolinkeyareasandthetreatmentofseriouspublicsecurityissuestotroubleshoot,ensuringharmonyandstability.Fourfurtherstrengthenpublicityandideologicalwork.Typicalhighlightsofselectedtreecultivation,andmoralexemplarsintheprovincedonothaveemerged,respectingthemoralmodelHangLiPoh,theprovincialworkerYuYoubo,State-levelmodelworkerFanYouzhi,HuJingqiu,includingYunnan,nujiang'sfinest,promotedthetheme,thecombinationofapositiveenergy.HunansatelliteTVinwangjiduVillagecompletedthemetamorphosisoftheshow'sfilming,silentnunutelevisionprogramairedthe"busybody"LaoLi,ancientvillage,woodandJiacunandXXmvillageswereratedasprovincialandStatelevelcivilizedvillage.XXinternationalvisibilityandreputationfurtherenhanced.Inaddition,wecontinuetopromotedemocracy,people'scongresses,politicalconsultativeconferenceroleplay,gongqingfu,amassorganizationtobetterservethescientificdevelopment.Further-11-\n技术交底书混凝土利用搅拌站搅拌，浇筑时加强振捣，保证边角处饱满、密实，预制板表面用毛刷进行拉毛处理。待混凝土初凝后，铺设湿润的麻袋对混凝土进行养护，待强度达到2.5Mpa以上方可进行拆模。待墙身强度达到设计强度并且盖板混凝土强度达到设计强度的100％后进行盖板的吊装。安装前应检验成品和涵身与安装有关部位的质量，影响安装的部位应提前整修达到标准。安装结合面应刷洗干净，安装时应浇水润湿，用设计要求强度等级的水泥砂浆将接缝塞满，塞实后抹平表面。安装完成后盖板应作穿钉处理，穿钉后其空隙用M10水泥砂浆灌满。（5）防水层及沉降缝的处理基础及墙身浇筑为分段施工，分段位置设置在设计沉降缝处，在浇筑混凝土的过程中用木板隔开，待涵洞完成盖板施工后，将木板取出用沥青麻筋填充密实。墙身沉降缝必须与基础沉降缝相对，避免出现错缝或者咬缝现象，防止不均匀沉降出现裂纹。沉降缝填缝前，缝内应清理干净，并保持干燥，填塞应连续密实，无漏水。massestour;Increasetheintensityoftheinvestigationandmediationofdisputes,fullimplementationofthebacklogforprocessingoflettersandcallssystemofleadingcadres;Keepagainstallformsofillegalandcriminalactivitiesofhighhanded,ensureagoodsocialorder;Strengthenthecollectionofintelligenceanalysis,closelyguardedactivitiesofevilcults;Fullimplementationofthesocialsecuritypreventionandcontrolinkeyareasandthetreatmentofseriouspublicsecurityissuestotroubleshoot,ensuringharmonyandstability.Fourfurtherstrengthenpublicityandideologicalwork.Typicalhighlightsofselectedtreecultivation,andmoralexemplarsintheprovincedonothaveemerged,respectingthemoralmodelHangLiPoh,theprovincialworkerYuYoubo,State-levelmodelworkerFanYouzhi,HuJingqiu,includingYunnan,nujiang'sfinest,promotedthetheme,thecombinationofapositiveenergy.HunansatelliteTVinwangjiduVillagecompletedthemetamorphosisoftheshow'sfilming,silentnunutelevisionprogramairedthe"busybody"LaoLi,ancientvillage,woodandJiacunandXXmvillageswereratedasprovincialandStatelevelcivilizedvillage.XXinternationalvisibilityandreputationfurtherenhanced.Inaddition,wecontinuetopromotedemocracy,people'scongresses,politicalconsultativeconferenceroleplay,gongqingfu,amassorganizationtobetterservethescientificdevelopment.Further-11-\n技术交底书防水层采用热沥青，涂刷两层，防水层涂刷前必须将混凝土表面清理干净，并不得有积水，沥青应涂刷均匀，厚度一致，不得漏刷，沥青在在涂刷前应充分稀释搅拌均匀，第二层涂料须在第一次涂料具有一定得强度后方可涂刷。（6）盖板涵附属工程施工方法洞口墙身、帽石，严格按设计尺寸和位置进行施工，达到线条一致，棱角分明。涵洞入口采用标准铺砌，铺砌层采用标准35cm厚的M5浆砌片石，下设碎石垫层10cm，片石缝隙间应填满砂浆防止冲刷以保证强度。侧墙顶面，应铺设厚度不小于1cm的油毛毡垫层。涵背回填必须在涵身强度达到设计强度后方可进行，填土时应做到两个涵背对称、水平、分层夯填并碾压密实。涵身两侧1m范围内的填土不得用大型机械施工。对大型碾压机具压不到的部位，配合小型机具和人工辅助冲击夯实，禁止采用大型机械堆土筑压和在涵身一侧夯填。涵背填土应选择透水性良好的砂砾石或沙性土，也可采用涵背填石或填碎石土，且应保证内摩擦角不小于35°。涵顶填土时，第一层填土最小厚度不小于30cm，填筑时避免剧烈冲击。涵顶填土超过1m，并经监理同意后，施工机械、车辆方可通行。交底人技术员施工班组massestour;Increasetheintensityoftheinvestigationandmediationofdisputes,fullimplementationofthebacklogforprocessingoflettersandcallssystemofleadingcadres;Keepagainstallformsofillegalandcriminalactivitiesofhighhanded,ensureagoodsocialorder;Strengthenthecollectionofintelligenceanalysis,closelyguardedactivitiesofevilcults;Fullimplementationofthesocialsecuritypreventionandcontrolinkeyareasandthetreatmentofseriouspublicsecurityissuestotroubleshoot,ensuringharmonyandstability.Fourfurtherstrengthenpublicityandideologicalwork.Typicalhighlightsofselectedtreecultivation,andmoralexemplarsintheprovincedonothaveemerged,respectingthemoralmodelHangLiPoh,theprovincialworkerYuYoubo,State-levelmodelworkerFanYouzhi,HuJingqiu,includingYunnan,nujiang'sfinest,promotedthetheme,thecombinationofapositiveenergy.HunansatelliteTVinwangjiduVillagecompletedthemetamorphosisoftheshow'sfilming,silentnunutelevisionprogramairedthe"busybody"LaoLi,ancientvillage,woodandJiacunandXXmvillageswereratedasprovincialandStatelevelcivilizedvillage.XXinternationalvisibilityandreputationfurtherenhanced.Inaddition,wecontinuetopromotedemocracy,people'scongresses,politicalconsultativeconferenceroleplay,gongqingfu,amassorganizationtobetterservethescientificdevelopment.Further-11-\n技术交底书massestour;Increasetheintensityoftheinvestigationandmediationofdisputes,fullimplementationofthebacklogforprocessingoflettersandcallssystemofleadingcadres;Keepagainstallformsofillegalandcriminalactivitiesofhighhanded,ensureagoodsocialorder;Strengthenthecollectionofintelligenceanalysis,closelyguardedactivitiesofevilcults;Fullimplementationofthesocialsecuritypreventionandcontrolinkeyareasandthetreatmentofseriouspublicsecurityissuestotroubleshoot,ensuringharmonyandstability.Fourfurtherstrengthenpublicityandideologicalwork.Typicalhighlightsofselectedtreecultivation,andmoralexemplarsintheprovincedonothaveemerged,respectingthemoralmodelHangLiPoh,theprovincialworkerYuYoubo,State-levelmodelworkerFanYouzhi,HuJingqiu,includingYunnan,nujiang'sfinest,promotedthetheme,thecombinationofapositiveenergy.HunansatelliteTVinwangjiduVillagecompletedthemetamorphosisoftheshow'sfilming,silentnunutelevisionprogramairedthe"busybody"LaoLi,ancientvillage,woodandJiacunandXXmvillageswereratedasprovincialandStatelevelcivilizedvillage.XXinternationalvisibilityandreputationfurtherenhanced.Inaddition,wecontinuetopromotedemocracy,people'scongresses,politicalconsultativeconferenceroleplay,gongqingfu,amassorganizationtobetterservethescientificdevelopment.Further-11-