引水隧洞衬砌混凝土施工技术交底 8页

引水隧洞衬砌混凝土施工技术交底一、施工准备二次衬砌采用全液压钢模衬砌台车施工，先墙后拱一次性浇注。衬砌施工工艺流程见下图：安设止水条、止水带砼拌合上料、计量绑扎钢筋各项检查砼运输模板整修、清理原材料准备机械设备检查拆模养护灌注砼封顶安装堵头模板捣固刷模、涂油台车就位测量放样施工准备首先进行施工准备工作：检查断面是否有侵限，对侵限部分凿除。对喷射混凝土面检查，不平处进行补喷。对凸出的锚杆、钢管头切除，并用砂浆抹平。对各种机械、设备进行检查、检修，确保设备能在施工期间正常运转。对上一循环接缝处的砼进行凿毛、清洗，并刷一层水泥浆以使新旧砼接合良好。二、台车定位attentiontotherelationshipbetweenplantsandsoil,aswellastheskilledtechnicianjobstobechosen.Itisalsoaftercompletionofthevarioustypesoffinishingjob,itshouldthoroughlyimplementqualityandprojectmanagementtoensurecomplete.Mainpointsareasfollows:(1)fullygraspthedesignintentanddesigndrawingsconfirmedonthebasisoftheconstructionsite.(2)accordingtovariouscriteria(andplantingprojectco-ordination)preparationofengineeringplansandschedulingplans.(3)thematerialsandmaterialsusedforqualitymanagement.(4)constructionmanagementcombinedwithtreeplantingprojects.⑦Lawnplantingseeds:designingProportioningofgrassseed,grassseedmix,sowgrassseedshouldbeevenlydistributednotlessthan35gpersquaremetre.Grassseedsowshouldbeappliedbeforethefootbasefertilizerandwaterimmersion,beslightlydrysowgrassseed.GrassseedSub...E,growinghedgeplants,spacedevenly,tree-richsidefromoutside,seedlingheight,trunksize,uniformmix.Inthenurseryprunedhedges,plantingshouldbebasedonmodelingspellplanting,plantingdepthshouldbeconsistent.F,blockplantingtimeorgroupplantingtime,plantbackintheorderfromtheCenteroutward.-Slopeplantshouldbeplantedfromtoptobottom.Largeblockgraftoradifferentcolorwhencolorbunchplantingshouldbepartitionedblockplanting.⑨subsidiaryfacilitiesoftheGreenProject:agreenspaceofwater-supplyandirrigationconstructionshallconformtothefollowingprovisions:(1),thewatersupplypipeshouldbebasedonasolidandcompact.(2),pipeclamps,interfacesshouldhaveafirm,tight,cleanpipeendnotFLOSS,lipclearanceaccuracy.(3),thepipingshouldcomplywiththedesignrequirementsandafterinstallationmustbehydrostatictest.(4),shouldbecarriedoutafterthepipelinetrenchandsoilcompactioninlayers.交底人：复核人：接受交底人：第7页共8页\n模板台车就位前先准确定出隧洞中线及断面标高，在测量时要考虑混凝土浇注时的变形量5cm。衬砌台车就位前必须整修、打磨光洁，涂刷色拉油，以便脱模。衬砌台车就位后进行测量控制，灌筑前进行复核。台车下部支垫稳固，上部及两侧面用丝杠支撑牢固，防止晃动、变形。按衬砌断面尺寸加工安装堵头模板，封堵端部混凝土。安装模板时注意安设止水带、止水条及预留孔洞的位置。回填灌浆管顶拱120o范围设置，间、排距3m，深入围岩50mm以上。三、止水带及止水条施工1、止水带止水带施工工艺流程：挡头模板钻钢筋孔穿钢筋卡放置止水带下一环节止水带定位灌注混凝土拆挡头板下一环止水带定位施作方法:环向施工缝止水带距迎水面20cm，纵向施工缝止水带距迎水面attentiontotherelationshipbetweenplantsandsoil,aswellastheskilledtechnicianjobstobechosen.Itisalsoaftercompletionofthevarioustypesoffinishingjob,itshouldthoroughlyimplementqualityandprojectmanagementtoensurecomplete.Mainpointsareasfollows:(1)fullygraspthedesignintentanddesigndrawingsconfirmedonthebasisoftheconstructionsite.(2)accordingtovariouscriteria(andplantingprojectco-ordination)preparationofengineeringplansandschedulingplans.(3)thematerialsandmaterialsusedforqualitymanagement.(4)constructionmanagementcombinedwithtreeplantingprojects.⑦Lawnplantingseeds:designingProportioningofgrassseed,grassseedmix,sowgrassseedshouldbeevenlydistributednotlessthan35gpersquaremetre.Grassseedsowshouldbeappliedbeforethefootbasefertilizerandwaterimmersion,beslightlydrysowgrassseed.GrassseedSub...E,growinghedgeplants,spacedevenly,tree-richsidefromoutside,seedlingheight,trunksize,uniformmix.Inthenurseryprunedhedges,plantingshouldbebasedonmodelingspellplanting,plantingdepthshouldbeconsistent.F,blockplantingtimeorgroupplantingtime,plantbackintheorderfromtheCenteroutward.-Slopeplantshouldbeplantedfromtoptobottom.Largeblockgraftoradifferentcolorwhencolorbunchplantingshouldbepartitionedblockplanting.⑨subsidiaryfacilitiesoftheGreenProject:agreenspaceofwater-supplyandirrigationconstructionshallconformtothefollowingprovisions:(1),thewatersupplypipeshouldbebasedonasolidandcompact.(2),pipeclamps,interfacesshouldhaveafirm,tight,cleanpipeendnotFLOSS,lipclearanceaccuracy.(3),thepipingshouldcomplywiththedesignrequirementsandafterinstallationmustbehydrostatictest.(4),shouldbecarriedoutafterthepipelinetrenchandsoilcompactioninlayers.交底人：复核人：接受交底人：第7页共8页\n30cm；沿衬砌轴线每隔不大于0.5m钻一φ12的钢筋孔。将制成的钢筋卡，由待灌混凝土侧向另一侧穿过挡头模板，内侧卡进止水带一半，另一半止水带平靠在挡头板上。待混凝土凝固后拆除挡头板，将止水带拉直，然后弯钢筋卡紧止水带。施工控制要点：①检查待处理的施工缝附近1m范围内围岩表面不得有明显的渗漏水，如有则采取必要的挡堵和引排措施。②按断面环向长度截取止水带，使每个施工缝用一整条止水带，除材料长度原因外尽量不采取搭接，接头搭接长度不小于30cm。③止水带对称安装，伸入模内和外露部分宽度必须相等，沿环向每0.5m设二根φ6mm短钢筋夹住，以保证止水带在整个施工过程中位置的正确。止水带处砼表面质量应达到宽度均匀、缝身竖直，环向贯通，填塞密实，外表光洁。④浇注混凝土时，注意在止水带附近振捣密实，但不得碰止水带，防止止水带走位。2、止水条止水条施工工艺流程：制作专用端头模板浇筑先浇衬砌段时形成预留槽浇筑下一段衬砌混凝土前安装止水条。施作方法：环向施工缝止水带距迎水面40cm，纵向施工缝止水带距迎水面60cm；环向、纵向施工缝采用在端头模板上固定木条，混凝土浇筑后形成凹槽。槽的深度为止水条厚度的一半，宽度为止水条宽度。清洗后，在灌注下循环混凝土之前，将止水条粘贴在槽中。施工控制要点：①二衬混凝土初凝后，拆除端头模板，将凹槽压平、抹光，凹槽的宽度略大于止水条的宽度。②attentiontotherelationshipbetweenplantsandsoil,aswellastheskilledtechnicianjobstobechosen.Itisalsoaftercompletionofthevarioustypesoffinishingjob,itshouldthoroughlyimplementqualityandprojectmanagementtoensurecomplete.Mainpointsareasfollows:(1)fullygraspthedesignintentanddesigndrawingsconfirmedonthebasisoftheconstructionsite.(2)accordingtovariouscriteria(andplantingprojectco-ordination)preparationofengineeringplansandschedulingplans.(3)thematerialsandmaterialsusedforqualitymanagement.(4)constructionmanagementcombinedwithtreeplantingprojects.⑦Lawnplantingseeds:designingProportioningofgrassseed,grassseedmix,sowgrassseedshouldbeevenlydistributednotlessthan35gpersquaremetre.Grassseedsowshouldbeappliedbeforethefootbasefertilizerandwaterimmersion,beslightlydrysowgrassseed.GrassseedSub...E,growinghedgeplants,spacedevenly,tree-richsidefromoutside,seedlingheight,trunksize,uniformmix.Inthenurseryprunedhedges,plantingshouldbebasedonmodelingspellplanting,plantingdepthshouldbeconsistent.F,blockplantingtimeorgroupplantingtime,plantbackintheorderfromtheCenteroutward.-Slopeplantshouldbeplantedfromtoptobottom.Largeblockgraftoradifferentcolorwhencolorbunchplantingshouldbepartitionedblockplanting.⑨subsidiaryfacilitiesoftheGreenProject:agreenspaceofwater-supplyandirrigationconstructionshallconformtothefollowingprovisions:(1),thewatersupplypipeshouldbebasedonasolidandcompact.(2),pipeclamps,interfacesshouldhaveafirm,tight,cleanpipeendnotFLOSS,lipclearanceaccuracy.(3),thepipingshouldcomplywiththedesignrequirementsandafterinstallationmustbehydrostatictest.(4),shouldbecarriedoutafterthepipelinetrenchandsoilcompactioninlayers.交底人：复核人：接受交底人：第7页共8页\n止水条安放前，先已浇筑混凝土端部充分凿毛、清洗干净，安装前在凹槽内涂抹一层胶粘剂，止水条顺凹槽拉紧嵌入，确保止水条与槽底密贴，并用水泥钉固定牢固。③止水条若有搭接，则可将止水条切成对口三角形，用胶水粘结，接口处不得有空隙。四、混凝土灌筑及捣固台车位置复核无误后，开始灌筑混凝土。衬砌混凝土采用拌合站集中拌合，配料时严格按照试验室提供的施工配合比配料，特别是外加剂必须严格控制掺量。泵送时首先泵送水，以检查有无异物，再进行泵送润滑料，润滑料可采用施工配合比中碎石减半的配比，泵送数量0.5～1m3，对管道起到润滑作用。每盘混凝土搅拌时间不少于1.5分钟，混凝土中途运输时间不超过15分钟。混凝土由罐车运至洞内，泵送混凝土由模板操作窗送至模板内，每层厚度控制在30cm左右，自由倾落高度不超过2m，两侧对称同时进行，高差不得超过50cm。混凝土入模后，边墙及拱腰由工作窗进入采用插入式振捣器振捣，拱顶采用附着式震动器振捣。振捣器的移动间距不大于振捣器作用半径的1.5倍，且插入下层混凝土内的深度宜为50～100mm，与侧模应保持50～100mm的距离，并避免碰撞模板、钢筋及预埋注浆管等。每一振点的捣固延续时间宜为20～30s，以混凝土不再沉落、不出现气泡、表面呈现浮浆为度，防止过振、漏振。当振捣完毕后，应竖向缓慢拔出，不得在浇筑仓内平拖。泵送下料口应及时移动，不得用插入式振动棒平拖驱赶下料口处堆积的拌和物将其推向远处。在混凝土浇筑过程中，派专人观察模板、支架、钢筋、预埋注浆管的情况，当发现有变形、移位时，及时采取措施进行处理。砼连续一次灌筑完毕，如发生停电等意外事故必须停工时，必须将灌筑面振捣整平。停工2小时以上，要待24小时后才能接灌。拱部封顶时，必须从由低处向高处灌注并填满捣实。在拱部混凝土达到2.5MPa以上时进行拆模，实际拆模时间以试验室试压强度数据为准。拆模时保护好混凝土角隅及表面，避免刮花混凝土。拆模后如发现有缺陷，及时修补。拆模后进行洒水养生不少于7天。衬砌施工完毕后，通过预埋注浆管压注1∶1水泥浆，填充初期支护与二次衬砌之间的空隙。attentiontotherelationshipbetweenplantsandsoil,aswellastheskilledtechnicianjobstobechosen.Itisalsoaftercompletionofthevarioustypesoffinishingjob,itshouldthoroughlyimplementqualityandprojectmanagementtoensurecomplete.Mainpointsareasfollows:(1)fullygraspthedesignintentanddesigndrawingsconfirmedonthebasisoftheconstructionsite.(2)accordingtovariouscriteria(andplantingprojectco-ordination)preparationofengineeringplansandschedulingplans.(3)thematerialsandmaterialsusedforqualitymanagement.(4)constructionmanagementcombinedwithtreeplantingprojects.⑦Lawnplantingseeds:designingProportioningofgrassseed,grassseedmix,sowgrassseedshouldbeevenlydistributednotlessthan35gpersquaremetre.Grassseedsowshouldbeappliedbeforethefootbasefertilizerandwaterimmersion,beslightlydrysowgrassseed.GrassseedSub...E,growinghedgeplants,spacedevenly,tree-richsidefromoutside,seedlingheight,trunksize,uniformmix.Inthenurseryprunedhedges,plantingshouldbebasedonmodelingspellplanting,plantingdepthshouldbeconsistent.F,blockplantingtimeorgroupplantingtime,plantbackintheorderfromtheCenteroutward.-Slopeplantshouldbeplantedfromtoptobottom.Largeblockgraftoradifferentcolorwhencolorbunchplantingshouldbepartitionedblockplanting.⑨subsidiaryfacilitiesoftheGreenProject:agreenspaceofwater-supplyandirrigationconstructionshallconformtothefollowingprovisions:(1),thewatersupplypipeshouldbebasedonasolidandcompact.(2),pipeclamps,interfacesshouldhaveafirm,tight,cleanpipeendnotFLOSS,lipclearanceaccuracy.(3),thepipingshouldcomplywiththedesignrequirementsandafterinstallationmustbehydrostatictest.(4),shouldbecarriedoutafterthepipelinetrenchandsoilcompactioninlayers.交底人：复核人：接受交底人：第7页共8页\n注浆要保证充填密实，注浆压力0.2～0.25MPa。泵送砼质量通病及防治措施质量通病原因分析防治措施蜂窝麻面1.模板漏浆；2.布料不均；3.高落差下料；4.气泡；5.局部积水和砼浆堆积。1.模板拼缝应严密。2.挡头板在浇筑砼前应浇水湿透，钢模拼缝处贴胶带纸密缝。3.加强组织,充分利用窗口，均匀布料。4.死角区人工二次倒运，严禁用振动棒摊平。胀模泵砼坍落度大，速度快，模板刚度不够，支撑不牢，突出鼓肚，甚至变形爆开。1.应进行分层分部浇筑。2.输送管道严禁靠近支撑，冲击倒坍。3.侧压力计算，确保安全。预留孔洞坍陷变形1.泵送砼坍落度大。2.掺粉煤灰等砼早期强度低。3.模板刚度不够，变形。1.合理控制拆模时间。2.根据试验强度拆模。裂缝1.泵送砼坍落度大，水泥、水用量大，容易产生收缝裂缝，特别环向接头。2.砼温度裂缝。1.控制砼入模温度和水分蒸发速度。加强养护，撒水。2.砼内部与外界温差控制在20℃以内。砼接触不良1.模板漏浆，造成烂脖子。2.管道堵塞时间太长，造成砼冷接头。3.未插连接筋。4.跑模错台。1.接合处模板加强支撑，确保牢固。2.夹吹塑纸或海绵条。砼质量波动1.现场配合比控制不好。2.表面未清理干净。3.泵送开始或结束时，压力砂浆积存在砼中影响强度。1.加强砼各环节管理。2.坍落度波动小于2cm。3.禁止随意加水。4.清除残存物。五、衬砌外观质量要求混凝土结构表面应密实平整、线条顺直美观、颜色均匀，施工缝平顺无错台，不得有露筋、蜂窝、孔洞、疏松、麻面和缺棱掉角等缺陷。衬砌结构外形尺寸允许偏差序号项目允许偏差（mm）检验方法1边墙平面位置±10尺量2拱部高程+30，0水准测量attentiontotherelationshipbetweenplantsandsoil,aswellastheskilledtechnicianjobstobechosen.Itisalsoaftercompletionofthevarioustypesoffinishingjob,itshouldthoroughlyimplementqualityandprojectmanagementtoensurecomplete.Mainpointsareasfollows:(1)fullygraspthedesignintentanddesigndrawingsconfirmedonthebasisoftheconstructionsite.(2)accordingtovariouscriteria(andplantingprojectco-ordination)preparationofengineeringplansandschedulingplans.(3)thematerialsandmaterialsusedforqualitymanagement.(4)constructionmanagementcombinedwithtreeplantingprojects.⑦Lawnplantingseeds:designingProportioningofgrassseed,grassseedmix,sowgrassseedshouldbeevenlydistributednotlessthan35gpersquaremetre.Grassseedsowshouldbeappliedbeforethefootbasefertilizerandwaterimmersion,beslightlydrysowgrassseed.GrassseedSub...E,growinghedgeplants,spacedevenly,tree-richsidefromoutside,seedlingheight,trunksize,uniformmix.Inthenurseryprunedhedges,plantingshouldbebasedonmodelingspellplanting,plantingdepthshouldbeconsistent.F,blockplantingtimeorgroupplantingtime,plantbackintheorderfromtheCenteroutward.-Slopeplantshouldbeplantedfromtoptobottom.Largeblockgraftoradifferentcolorwhencolorbunchplantingshouldbepartitionedblockplanting.⑨subsidiaryfacilitiesoftheGreenProject:agreenspaceofwater-supplyandirrigationconstructionshallconformtothefollowingprovisions:(1),thewatersupplypipeshouldbebasedonasolidandcompact.(2),pipeclamps,interfacesshouldhaveafirm,tight,cleanpipeendnotFLOSS,lipclearanceaccuracy.(3),thepipingshouldcomplywiththedesignrequirementsandafterinstallationmustbehydrostatictest.(4),shouldbecarriedoutafterthepipelinetrenchandsoilcompactioninlayers.交底人：复核人：接受交底人：第7页共8页\n3边墙、拱部表面平整度152m靠尺检查或自动断面仪测量六、施工注意事项⑴衬砌不得侵入隧道建筑限界，衬砌施工放样时将设计的轮廓线扩大5cm。⑵混凝土灌注前及灌注过程中，应对模板、支架、钢筋骨架、预埋注浆管等进行检查，发现问题应及时处理，并做好记录。⑶混凝土振捣避免碰撞模板、钢筋及预埋注浆管等。。⑷衬砌施工缝端头必须进行凿毛处理，用高压水冲洗干净。⑸按设计要求预埋止水带、止水条及注浆管。⑹砼衬砌灌注自下而上，先墙后拱，对称浇筑。在施工过程中，如发生停电应立即起动备用电源，确保砼浇筑作业连续进行。⑺泵送砼结束时，应对管道进行清洗，但不得将洗管残浆灌入到已浇筑好的砼上。⑻用与二次衬砌混凝土相同配合比的细石混凝土或砂浆制作垫块，确保钢筋保护层的厚度，主筋保护层尺寸不小于50mm。七、泵送砼操作规程及其注意事项⑴混凝土泵的操作人员必须经过专门培训合格后，方可上岗操作。⑵混凝土泵与输送管连通后，应按所用混凝土泵使用说明书的规定进行全面检查，符合要求后方能开机进行空运转。⑶混凝土泵启动后，应先泵送适量水以湿润混凝土泵的料斗、活塞及输送管的内壁等直接与混凝土接触部位。⑷经泵送水检查，确认混凝土泵和输送管中无异物后，应采用下列方法之一润滑混凝土泵和输送管内壁。①泵送水泥浆；②泵送与施工混凝土相同配合比但粗骨料减少50%的混凝土通过管道。⑸attentiontotherelationshipbetweenplantsandsoil,aswellastheskilledtechnicianjobstobechosen.Itisalsoaftercompletionofthevarioustypesoffinishingjob,itshouldthoroughlyimplementqualityandprojectmanagementtoensurecomplete.Mainpointsareasfollows:(1)fullygraspthedesignintentanddesigndrawingsconfirmedonthebasisoftheconstructionsite.(2)accordingtovariouscriteria(andplantingprojectco-ordination)preparationofengineeringplansandschedulingplans.(3)thematerialsandmaterialsusedforqualitymanagement.(4)constructionmanagementcombinedwithtreeplantingprojects.⑦Lawnplantingseeds:designingProportioningofgrassseed,grassseedmix,sowgrassseedshouldbeevenlydistributednotlessthan35gpersquaremetre.Grassseedsowshouldbeappliedbeforethefootbasefertilizerandwaterimmersion,beslightlydrysowgrassseed.GrassseedSub...E,growinghedgeplants,spacedevenly,tree-richsidefromoutside,seedlingheight,trunksize,uniformmix.Inthenurseryprunedhedges,plantingshouldbebasedonmodelingspellplanting,plantingdepthshouldbeconsistent.F,blockplantingtimeorgroupplantingtime,plantbackintheorderfromtheCenteroutward.-Slopeplantshouldbeplantedfromtoptobottom.Largeblockgraftoradifferentcolorwhencolorbunchplantingshouldbepartitionedblockplanting.⑨subsidiaryfacilitiesoftheGreenProject:agreenspaceofwater-supplyandirrigationconstructionshallconformtothefollowingprovisions:(1),thewatersupplypipeshouldbebasedonasolidandcompact.(2),pipeclamps,interfacesshouldhaveafirm,tight,cleanpipeendnotFLOSS,lipclearanceaccuracy.(3),thepipingshouldcomplywiththedesignrequirementsandafterinstallationmustbehydrostatictest.(4),shouldbecarriedoutafterthepipelinetrenchandsoilcompactioninlayers.交底人：复核人：接受交底人：第7页共8页\n开始泵送时，混凝土泵应处于慢速、匀速并随时可反泵的状态。泵送速度应先慢后快，逐步加速。同时，应观察混凝土泵的压力和各系统的工作情况，待各系统运转顺利后，方可以正常速度进行泵送。⑹泵送混凝土时，如输送管内吸入了空气，应立即反泵吸出混凝土至料斗中重新搅拌，排出空气后再泵送。⑺泵送混凝土时，料斗内应保持足够的混凝土。⑻当混凝土泵出现压力升高且不稳定、油温升高、输送管明显振动等现象而泵送困难时，不得强行泵送，并应立即查明原因，采取措施排除。可先用木槌敲击输送管弯管、锥形管等部位，并进行慢带泵送或反泵，防止堵塞。⑼当输送管被堵塞时，应采取下列方法排除：①重复进行反泵和正泵，逐步吸出混凝土至料斗中，重新搅拌后泵送。②用木槌敲击等方法，查明堵塞部位，将混凝土击松后，重复进行反泵和正泵，排除堵塞。③当上述两种方法无效时，应在混凝土卸压后，拆除堵塞部位的输送管，排出混凝土堵塞物后，方可接管。重新泵送前，应先排除管内空气后，方可拧紧接头。⑽泵送混凝土有计划中断时，应预先确定中断浇筑的部位，且中断时间不宜超过1h。⑾管道清洗①洗管前先进行反吸，以降低管内压力。②洗管时，料管出口方向前方严禁站人。③预先准备好排浆沟、管，不得将洗管残浆灌入已浇筑好的砼上。⑿排除堵塞，重新泵送或清洗混凝土泵时，布料设备的出口应朝安全方向，以防堵塞物或废浆高速飞出伤人。⒀管道安装原则管线宜直、转弯宜缓，以减少压力损失；接头严密，防止漏水漏浆，避免下斜，防止泵孔空管，灌筑点应先远后近，并符合下列要求：attentiontotherelationshipbetweenplantsandsoil,aswellastheskilledtechnicianjobstobechosen.Itisalsoaftercompletionofthevarioustypesoffinishingjob,itshouldthoroughlyimplementqualityandprojectmanagementtoensurecomplete.Mainpointsareasfollows:(1)fullygraspthedesignintentanddesigndrawingsconfirmedonthebasisoftheconstructionsite.(2)accordingtovariouscriteria(andplantingprojectco-ordination)preparationofengineeringplansandschedulingplans.(3)thematerialsandmaterialsusedforqualitymanagement.(4)constructionmanagementcombinedwithtreeplantingprojects.⑦Lawnplantingseeds:designingProportioningofgrassseed,grassseedmix,sowgrassseedshouldbeevenlydistributednotlessthan35gpersquaremetre.Grassseedsowshouldbeappliedbeforethefootbasefertilizerandwaterimmersion,beslightlydrysowgrassseed.GrassseedSub...E,growinghedgeplants,spacedevenly,tree-richsidefromoutside,seedlingheight,trunksize,uniformmix.Inthenurseryprunedhedges,plantingshouldbebasedonmodelingspellplanting,plantingdepthshouldbeconsistent.F,blockplantingtimeorgroupplantingtime,plantbackintheorderfromtheCenteroutward.-Slopeplantshouldbeplantedfromtoptobottom.Largeblockgraftoradifferentcolorwhencolorbunchplantingshouldbepartitionedblockplanting.⑨subsidiaryfacilitiesoftheGreenProject:agreenspaceofwater-supplyandirrigationconstructionshallconformtothefollowingprovisions:(1),thewatersupplypipeshouldbebasedonasolidandcompact.(2),pipeclamps,interfacesshouldhaveafirm,tight,cleanpipeendnotFLOSS,lipclearanceaccuracy.(3),thepipingshouldcomplywiththedesignrequirementsandafterinstallationmustbehydrostatictest.(4),shouldbecarriedoutafterthepipelinetrenchandsoilcompactioninlayers.交底人：复核人：接受交底人：第7页共8页\n①管道合理固定，不影响交通运输，不影响已绑扎好的钢筋，不影响模板振动。②管道、弯头、配件存有备品，可随时更换。⒁如遇混凝土泵运转不正常或混凝土供应脱节，可放慢泵送速度，或每隔4～5min使泵正、反转两个冲程，防止管路中混凝土阻塞。同时开动料斗中搅拌器，搅拌3～4转，防止混凝土离析。⒂严禁向混凝土料斗内加水。八、安全注意事项1、现场必须有专职安全员巡视，发现不安全因素，及时排除；2、施工过程中所有人员必须佩戴安全帽进场；3、施工、照明用电必须由专业电工进行搭接，电缆严禁拖地粘水。九、环保1、施工过程中尽量减少对植被的破坏；2、施工过程中尽量减少施工用水的流失；3、掉落在省道上的混凝土及时清理。attentiontotherelationshipbetweenplantsandsoil,aswellastheskilledtechnicianjobstobechosen.Itisalsoaftercompletionofthevarioustypesoffinishingjob,itshouldthoroughlyimplementqualityandprojectmanagementtoensurecomplete.Mainpointsareasfollows:(1)fullygraspthedesignintentanddesigndrawingsconfirmedonthebasisoftheconstructionsite.(2)accordingtovariouscriteria(andplantingprojectco-ordination)preparationofengineeringplansandschedulingplans.(3)thematerialsandmaterialsusedforqualitymanagement.(4)constructionmanagementcombinedwithtreeplantingprojects.⑦Lawnplantingseeds:designingProportioningofgrassseed,grassseedmix,sowgrassseedshouldbeevenlydistributednotlessthan35gpersquaremetre.Grassseedsowshouldbeappliedbeforethefootbasefertilizerandwaterimmersion,beslightlydrysowgrassseed.GrassseedSub...E,growinghedgeplants,spacedevenly,tree-richsidefromoutside,seedlingheight,trunksize,uniformmix.Inthenurseryprunedhedges,plantingshouldbebasedonmodelingspellplanting,plantingdepthshouldbeconsistent.F,blockplantingtimeorgroupplantingtime,plantbackintheorderfromtheCenteroutward.-Slopeplantshouldbeplantedfromtoptobottom.Largeblockgraftoradifferentcolorwhencolorbunchplantingshouldbepartitionedblockplanting.⑨subsidiaryfacilitiesoftheGreenProject:agreenspaceofwater-supplyandirrigationconstructionshallconformtothefollowingprovisions:(1),thewatersupplypipeshouldbebasedonasolidandcompact.(2),pipeclamps,interfacesshouldhaveafirm,tight,cleanpipeendnotFLOSS,lipclearanceaccuracy.(3),thepipingshouldcomplywiththedesignrequirementsandafterinstallationmustbehydrostatictest.(4),shouldbecarriedoutafterthepipelinetrenchandsoilcompactioninlayers.交底人：复核人：接受交底人：第7页共8页