石灰石堆场施工方案

利雅得水泥厂石灰石预均化堆场施工方案RiyadhCementCompanyLimestonePreblendingStockpileConstructionScheme说明：Instructions:该方案编制依据：ThisSchemeiscompiledaccordingto1、石灰石预均化堆场施工图纸Drawingsforlimestonepreblendingstockpile2、总承包合同要求RequirementsofGeneralContract3、施工现场环境、机具，施工经验等Siteenvironmentequipmentsandourconstructionexperiences4、建筑施工手册(第四版)ConstructionManual(fourthedition一、工程概况BriefIntroductionoftheProject1、工程性质和作用该工程为利雅得水泥厂石灰石预均化堆场，其功能是储存和运输石灰石，建筑工期：土建部分计划92天.质量要求:土建工程范围是按照业主提供的文件所进行的交钥匙模式施工，在施工的每一步都要业主的质量认可，达到业主的满意.NatureoftheProjectanditsfunctionTheProjectisthelimestonepreblendingstockpileofRiyadhCementCompanywhosefunctionistostoreandtransport,liia^slt(iih©timelimitforthefoundationis。92Qualityrequirements:TheCivilWorksScopeisaTurnkeypatternexecutedasperthedocumentationsofferedbytheOwnerwitheachsteptobeapprovedbyandtothesatisfactionoftheOwner2、建筑的结构特征该工程主要由网架基础、堆取料机轨道基础和石灰石运输廊道组成，网架基础由40个钢筋混凝土基础组成的半径为56m的环形基础，基础之间用基础梁连接，供上部施工金属网架.堆取料机轨道基础是半径为51m的环型钢筋混凝土基础，基础底宽1。2m,高1。3m,设置8道混凝土后浇带以降低混凝土收缩应力，基础上部设计有预埋螺栓，用于堆取料机轨道的安装。石灰石运输廊道为本工程施工的重点，其主要部位是位于场内的箱体结构进料仓，外部结构尺寸;高11m，宽8m，长40。5m，壁厚1m，底标高-11m，局部-12m，因为是地下工程，施工时要考虑防水，防潮措施.StructureCharacteristicoftheConstructionTheProjecconsistsonfetframefoundation,stoclahdgreclaimingtrackfoundationandlimestonebeltconveyornetframefoundationismadeupof40reinforcedconcretefoundations.Thefoundationswi11beconnectedwithbeams.Thefoundationofstockingandreclaimingtrackisaroundoneoasemidiametre51。mThewidthoffoundationis，1.21eingth1.3m.8concreterearcastingbeltsareinstalledtoreducethecontractionstressofconcretePre—embeddedanchorboltisinstalledontheupperpartofthefoundation.Thelimestoneconveyoristhehighlighto，ftwhiethprtohjectbinasitsmainpartthedimensionofwhichisasfollows:height11m，width8mlength40.5mthickness1mbottomelevation11m,part12m.Waterproofingandmoistureproofingshouldbetakenintoconsiderationsinceitisanundergroundproject施工目标ObjectiveoftheConstruction1、工期目标计划25年8月25日开工，25年11月25日结束，工期92天。TimelimitoftheConstructionTheConstructionbeginsonAug2255andwi11finishonNov25,25withtheperiodof92days.2、质量目标确保优质工程，达到业主工程师满意。GoalsofQualityQualityistobeofsuperiorandtothesatisfactfoneofiitdner.Owner3、安全生产目标坚持：“安全第一，预防为主”的方针，保证一般事故率小于0。15%,工亡率为0,在施工期间杜绝一切重大安全事故.ObjectiveofSafetySafetyandprecautionfromaccidentswi11alwaysbeputinthefirstplaceCommonaccidentratewi11becontrolledwithin0.15%anddeathrate0%Anymajorsafetyaccidentwillbeshunned.4、文明施工和环保目标强化施工现场科学管理，满足现场环保要求达到业主工程师满意。Pursuitoforderandenvironmentalprotection11isourgoaltoreinforcethescientificmanagementofthesiteconstructtomeetwiththeenvironmentalprotectionequirementandtomakeourOwnerandEngineersatisfactory.5、服务目标建造业主满意工程.TargetofourserviceAprojecttothesatisfactionoftheOwner三、管理组织机构本工程根据其特点，在现场成立项目经理部，实施总承包管理模式，由项目经理、项目总工程师、项目经济师组成，负责对工程的领导、决策、指挥、协调、控制等事宜，对工程的进度、成本、质量、安全和现场文明施工等负全部责任。AdministrationByvirtueofthecharacteristicofthisproject,thebusinesspatternofGenContractingisbroughtintoeffectandtheProjectManagementDepartmentistobeestablishedontheSitewhichismadeupofProjectPManagerChiefEngineerandProjectEconomist,whoareresponsiblefor，thdeceadong—making，superintending,coordinatingandcontrollingof，tanedpwtogectarealsoinfullchargeoftheprocedure,costqualitysafetyandorderlyexecutionoftheproject.四、施工方案1、土方工程1、室外自然地坪平整后一0.2m，网架基础土方挖深为L1m，堆取料机轨道基础土方挖深0.6m，采用机械破碎挖土，如遇回填土石方，需继续挖至原土层，石灰石运输廊道基础挖深11m,土方开挖前,先爆破，后采用反铲分两层开挖，边坡坡度根据岩石性质，层理特性和挖方深度确定,一般为1：0.35-11。5,基底根据构筑物尺寸每边留置不少于1m的工作面，挖出的土方用自卸汽车运至场外，并平整好场地。Outdoornaturalleveling—0。2m,netframefoundationexcavationdepth11m。stockingandreclaimingtrackfoundationexcavationdepth0.6m.adoptmachinerycrushingexcavation.Ifmeetrefi11ingsoil,shoulddigtotheoriginaLlayemestoneconveyorfoundationdepth,11mblasting)eforeexcavation,slopingisbetween1:0.3—1：1.5.1mofworkingplaceisreserved.Theexcavatedsoilandrocksareremovedbydumpertotheoutsideandlevelingisdone.1-2、土方回填采用铲运机运土分层回填，每层回填厚度不大于30cm,用蛙式打夯机夯实，并夯实后达到干燥时的密度的确90%,上表面用振动压实机压实地表。Refillingisdonebycarryscraperandtherefillingisdonebylayers,ealayerthethicknessislessthana3idcnthefroghammerisusedfortampingAndthedensitywhenbeingdr%jsv90ratingcompactorisusedtocompactthesoilsurface.2、网架基础和堆取料机基础工程施工方法Netframefoundationandreclaimerfoundationconstruction2—1、基础摸板利用多层胶合板、木支撑棱角用小木方制成45度角，棱角直角边长20mm,支撑方式如下图：Foundationmouldboardwilluseply—board,woodsupporterandanglewi11befiliedwithsmallwoodencubewithh^51engthofangleis20mmwhichisshownbythefollowingdiagram:2、堆取料机基础螺栓可采用预留孔洞或沟槽，后栽螺栓的方式施工，保证螺栓的位置准确,后灌注的混凝土掺加膨胀剂，膨胀剂的使用参照使用说明书，并经业主工程师确认后施工。Thefoundationboltswi11beembeddedintheconcretetoguaranteethatitisinstalledattheappropriatThplconcretewi11beaddedswellerwhoseusagewillfollowinstructionsandwiththeapprovalofengineer3、石灰石运输廊道工程施工；Limestoneconveyorcorridorconstruction1、施工步骤；从进料仓开始以设计的变形缝划分，分四个施工段，进行流水施工。Processfourpartsaltogetherfromtheentranceofthematerials3—2、模板工程施工方法；模板采用18mm厚木质胶合板，50x1（mm）松木方制作，木楞间距3mm，用^48x3。5钢管做支架固定，参见“墙体模板施工图”施工，通廊内侧用©48x3.5钢管架设满堂脚手架，外侧架设双排脚手架，脚手架同时当作钢支架支撑模板，脚手架横杆和立杆的间距均设为6mm，保证模板支撑强度和刚度，双排脚手架外侧与基坑壁靠紧，使其不会因混凝土侧压力产生横向变形，保证混凝土墙壁的截面尺寸，模板内可用木方支撑，待混凝土浇注到此位置时将其取出。Mouldboardwillbe18mmthick50x1（0ifim）pinewookcubes,andthedistancebetweenwoodencubeswi11be3mm,andfixedwithframeofsteeltubes^（4i8x3o5,seethe“DrawingsofWallMouldBoard”。Theinnerplaceofcorridorwillbefilledwithscaffold,andtheouterplacewillbeinstalledwithtworollscaffold,andthescaffoldwillbeusedatthesametimeassupportertosupporttheboard.Thedistanceis6mmtoguaranteethestrengthandseverity。Thetworollscaffoldwillbeclosetothepitsidetoavoiddeformation。以上模板支撑方案适用于地下部分，有基坑壁支护的位置.地上部分廊道的墙体模板采用©14对拉螺栓固定，间距6mm,每侧用两根50x1（mm）木方做横楞，横楞间距6mm。Theabovemouldsupportingplanisapttoundergroundpart,withpitsidesupporterparts.Thewallmouldboardabovegroundwillbefixedwithboltsof^14,distance6mm,twowoodencubesof50x1(mm)willbeusedwiththedistanceof6mm3-3、钢筋工程施工Reinforcedbars⑴、钢筋加工，现场设置一台钢筋切断机，一台钢筋弯曲机，二台电焊机，一台钢筋调直机，一处钢筋制作棚。钢筋质量需经业主工程师确认合格后加工制做。Onesetofbarcutter,onesetofbarbender,twosetsofwelderandonesetofbarstraighter。Anderectashedforthework.ThequalityofthebarsshouldrequiretheOwner’sapproval。⑵、钢筋安装：水平设置纵向钢筋连接采用单面搭接焊，搭接长度10倍钢筋直径，竖向钢筋采用电渣压力焊，接槎相互错开，距离为钢筋直径的35d以上，底板上排钢筋用铁马登架起，间距1。5m，侧壁双排钢筋间用*10拉筋固定间距。侧壁竖向钢筋长度大于6m的采取在底板处设置插筋,后焊接上部钢筋的方式施工。插筋留设方式参见标准图集，并经业主工程师确认后施工。Reinforcingbar:Thelevelestablisheslengthwaysreinforcingbarconjunctionadoptiontheonesidetakestoconnectthewelding,takingtoconnectthelength10timesreinforcingbardiameter,theuprightfacesreinforcingbaradoptionelectricitypressure,connectthetoshuntmutually,distanceofreinforcingbarthediametral35dsabove,liningupthereinforcingbartoascendwiththeirononthescaleboardrises,isapartfrom1。5ms,sidewalldoublerowthereinforcingbarusesthe*10pulflix。Thesidewalluprightfacestheoverandaboveawayforadoptinginthescaleboardestablishingbar,behindweldingupperpartreinforcingbarconstructioninreinforcingbarlength。Puttingthebarstaystoestablishthewaypaystothestandarddiagramgathers,combiningafterownerengineerconfirmstartconstruction。3-4、混凝土工程ConcreteProject⑴、混凝土等级B25，提供混凝土用的砂、石、水泥试验后经业主工程师认可，由试验确定混凝土配合比，该工程混凝土采用罐车运输，混凝土泵送浇筑,要求混凝土初凝时间不少于3小时，保证连续浇筑.ConcretegradeB25,thesand,stones,cementshouldbetestedandapprovedbyOwner’sEngineer。Trialmixcubeistobetested.Theconcreteistransportedbytransportmixer,andconveyedbypump.Initialsettingtimeisnotlessthan3hours,andcontinuouscastingisrequired。混凝土浇筑施工缝的布置，该工程按设计变形缝分四个流水段施工，每一施工段底板与墙面之间设置一道施工缝，施工缝距底板上表面3mm高，施工⑶、⑷、缝制作成齿形防水带，如图所示，侧壁与顶梁板浇注时，在侧壁浇筑完毕后停歇1-L5小时，使混凝土获得初步沉实后在继续浇筑，以防止接缝处出Theconcretesprinklestobuildtheconstructionsewsofarrange,thatengineeringtransformstosewtodividefourflowingwatersaconstructionaccordingtothedesign,eachaconstructionascaleboardestablisheswithwallconstructionsews,startingconstructiontosewtobeapartfromscaleboardtopthesurface3mmshigh.Theconstructionstitchestomakethepermanentteethformwatertightness,shownasdiagram,thesidewallsprinkleswithcrestbeamplanktonote,stop1—lo5hoursaftersidewallsprinklebuildtocomplete,maketheconcreteacquirethefirststeptosinksolidtheempresssprinklingtobuiIdcontinuously,inordertopreventjoint.⑶、⑷、混凝土浇筑顺序，底板混凝土浇筑应从一侧开始纵向连续浇筑，侧壁混凝土分层连续浇筑每层3-4高，并且在下层混凝土初凝之前浇筑上一层混凝土.Concretecastingorder:itshouldbelengthwiseandcontinuously,with3-4thickness，andtheupperlayershouldbecastbeforesolidificationofthelowerlayer。4、混凝土养护concretecuring混凝土用混凝土养护液养护和浇水湿润的方式进行养护。Theconcreteiscuredwithchemicalliquidandwatercuring。五、施工准备计划Preparationofconstruction1、供水和供电：现场施工用水主要考虑木模板湿润、混凝土养护、土方压实等工程施工使用，配备60立方米水箱满足施工用水。施工用电采用自备发电机组，供电量450KW，满足该工程的施工临时用电。Powersupplyandwatersupply60cubicmeterwatertankshouldbepreparedfortheuseofwateronthesite,mainlyformoistureofwoodenboard,curingofconcreteandcompressingofsoil。Powersupply:generator,capacity450KW，tomeetwiththerequirementonthesite.2、场内道路Roadonthesite现场临时道路，场地平整已施工完，符合施工要求.Levelingandprofilingofroadhasbeenfinished.3、房屋设施housing现场利用一间原有的房屋修建后作为现场办公、休息、小型材料、机具储备等用房.Tousetheexistinghouseforoffice，rest，andstoreroomofmaterials，andsmallequipments。4、现场劳动力组织labourallocation4-1、以工程处为主，组建一个综合性施工队伍，在结构施工阶段，组成木模、钢筋、混凝土三个专业班组，设木工工长两人，钢筋工长二人，混凝土工长两人。Threegroupswillbeestablished:woodmoulding,reinforcedbarandconcrete,withtwochiefsforeachgroup.4-2、现场劳动组织需求量：结构施工阶段，木工20人，钢筋工15人，混凝土工12人，其他工种5人。Laboursneeded:20carpenters，15barlabors，12concretelabors,and5ofotherlabors。六、施工进度计划progress在保证施工质量的前提下，实行快速流水作业，做好本工程施工进度计划.1、廊道工程在平面上划分为四个施工流水段，施工网络计划如图：2、网架基础和堆取料机轨道基础施工计划安排：首先施工网架基础，后施工堆取料机轨道基础计划工期40天。施工进度计划见附表。Conveyorisdividedinto4partsNetframefoundationandreclaimertrackconstructionwillbe40days.七、施工质量保证措施MeasuresofQualityGuarantee1、加强技术管理，认真贯彻各项技术管理制度，开工前要落实各级人员岗位责任制，做好技术交底，施工中要认真检查执行情况，开展全面质量管理活动，根据工序报验程序，及时报请咨询工程师审核。Wearetoenhancethetechnicmalnagement,earnestlycarrythrougheachtechnicaalndmanagementregulationE.xpresslystipulatteheresponsibilityofeachpostingandwellmanagetheshifte,xaminethoroughlyduringtheexecutionandreporttotheConsultantsfortheirapproval.2、认真进行原材料检验，钢材和水泥等材料，必须提供质量保证书，并按规定做好抽验，各种强度等级的混凝土，要认真确定设计配合比，规定减水剂掺量，按规定制作试块。Steels,cementandallotherrawmaterialsshouldbewelltestedbeforeaccesintothesiteandtheirqualitycertificaandrandomtestarerequiredaccordingtorelevantstipulationsTrialmixcubesshouldbemadeforvariousgradesofconcrete3、加强材料管理，建立工料消耗台帐，实行“当日记载，月底结帐”制度，钢筋工程采用现场集中配料，冷拉和对焊措施，降低钢材损耗.Establishaccoubnotokforrawmaterialnsdclaimsforthesarmetobejournalizedeveryday.4、严格控制标高和垂直度，用经纬仪把轴线、边线投到基础底面，并做好控制点，外模安装必须用线锤和经纬仪双重检查，模板安装完毕后，须经质量检验人员验收合格后，报业主工程师批准后进行下道工序施工。Strictlycontrolelevationandvertical.5、加强工序间配合，在结构施工中，水、电等工种，应与其密切配合，设专人检查预留孔洞，埋件等的位置.Alltherelevantsectionsshouldhavegoodcooperationsuchaswatersupplyandpowersupply八、施工安全保证措施1、超过3m深的基坑，土石方开挖完成后,距基坑1。2m处和出入设置一道高0.9m的护栏，施工用机具材料不准存放在护栏内，非本专业施工人员不准随便进入工作区。A0.9mrailingistobeerectedaroundpitswhicharemore,than3mdeepandanytoolsormaterialareforbiddenwithintherailingandonlyworkersofthepitshallbepermittedintotherailing.2、加强放火工作，现场设置灭火装置和灭火器具。Firehydrantandfireextinguisheraretobeplacedonthesite.3、做好安全生产教育和职工安全素质培养，做好分部分项作业时的安全交底工作，施工班组每天召开班前会，对工人进行针对性安全教育，新工人未经教育不得上岗.Dothesafetytrainingholdashortmeetingaboutsafetyeverymorning,discussandsolveexistingsafetyproblemworkersmusthaveasafetytrainingbeforeworkingonthesite.专业工长在分项工程施工前，以书面形式向班长交底，在涉及重大安全问题时，召集全体操作人员现场交底，并且全员签字。Writtendeliveryreceipisamustinshiftingandsignatureofallarerequiredforsafetycases.4、加强机械设备接地，建筑物及设备的避雷装置和其他安全限位的管理和整改。EarthingofequipmentisstrictliyequestedAndlighteningonductorisalsorequired5、机械操作人员，特殊工种必须经过培训，持证上岗上班，非操作人员不准动用机电设备。Machineoperatorsmusthaveatrainingbeforeoperating九、文明施工管理措施orderlyexecutionoftheconstruction1、现场成立文明施工领导小组，由项目经理负责现场文明施工，以创文明施工样板工程为奋斗目标。Specificdepartmentistobeestablishedfortheorderlyexecutionanditourtenettoestablishthesystemtokeepaorderlyandproperexecutionfotheconstruction2、现场布置按计划安排，建筑材料堆放整齐，构件材料分门别类，道路通畅，临时设施整齐有序，垃圾及时清扫，做到随做随清，现场内无施工垃圾，文明整洁.Keepthesitecleanand，tidytegorizeallthematerialsandsparepartsMaketheroadsalwaysaccess,iblemporarybuildingsneatonstructionwasteclearedintime.十、施工资源计划constructionplans1、主要施工机具需用量计划表Equipmentsandmachinesneeded序号机具名称型号及规格单位数量1钢筋切断机气短直径32mm台12钢筋弯曲机弯曲直径32mm台13钢筋调直机台14电焊机BX-3台25气割工具套26木工圆盘锯台27平刨机台28自动压刨机台19混凝土运输车、输送泵台210搅拌机台111切割机台212电渣压力焊机具套413汽车吊20T辆114运输汽车辆115蛙式打夯机台216震动器台617震动棒条20ItemNameofequipmentsSpecificationsunitQuantity1BarcutterDia32mmset12BarbenderBendingdia32mmSet13BarstraighteningmachineSet14WeldingmachineBX-3set25Gascutterset26Carpenter'srotarysawSet27Tryingplaneset28AutomaticThicknessingmachineset19ConcretemixerandconveyingpumpSet210mixerSet111Cuttingmachineset212ElectroslagpresswelderSet413Truckcrane20tSet114carrierset115FrogrammerSet216jolterSet617vibratorbar202、施工工具需用量计划表序号工具名称型号及规格单位数量1双轮推车台102打气筒个23修补工具、材料套14羊角锤把205手锯把206斧子把107钉袋个208尖镐把59尖锹把2010平板锹把2011铁挫把1012综绳M113手板葫芦套2014对拉螺丝个115眼镜扳子个20ToolsneededItemNameoftoolsspecificationsunitquantity1Twowheeltrolleyset102inflatorpiece23ToolsandmaterialsforrepairSet14Nailhammerpiece205Handsawpiece206axepiece107Nailbagpiece208AcutehammerPiece59Acuteshovelpiece2010Flatshovelpiece2011filePiece1012cordM113Handpullingblockset2014screwpiece115spannerpiece20主要施工材料计划表序号材料名称型号及规格单位数量1钢筋T3052混凝土m3433模板木材50x1木方m315018厚胶合板m31204脚手工具*48x3.5管T70直角扣件T17对接扣件T7旋转扣件t2底座个15MaterialsneededItemNameofmaterialspecificationsunitquantity1Reinforcedbart3052concretem3433Mouldboard50x1cubicm315018thicknessplywoodm31204Scaffoldfacilities*48x3.5tubet70Rightanglefastenert17Abuttingjoinfastenertt7Rotarybucklet2basepeice15十一、施工平面布置图Constructionlayout木工制作S地模板结构设计1）混凝土侧压力值：concretesidepressure混凝土自重concreteselfweigh24KN//m2强度等级strengthgradeB25F=0。22YcJpiP2Vi/2F=Yc。H其中：F新浇筑对模板最大侧压力maximumpressuretothemouldboard(KN//m2)Yc--混凝土的重力密度gravityofconcreKN//m2)L混凝土初凝时间表timeofinitialolidaritfconcrete(h)实测或L=2/(T+15)T为混凝土温度temperatureofconcr取t20度.20°CV混凝土浇筑速度castingspeedofcon(m/hi取1。2(m/h)H混凝土侧压力位置处至混凝土顶面的总高度concretepressureandtotalheight):(取8m八八修正系数correcternbdulo塌落度slump110150mm时取1。15混凝土侧压力标准值：concretesidepressuredataF1=0.22x24x5o71x1。15x1.21/2=38KN/面F2=24x8=192KN//m2取二者中小值：taketheloweroneofthq=3\8oKN//rn2混凝土侧压