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嘉民西安電子商務(wù)產(chǎn)業(yè)園地面施工專項方案室外道路、倉庫地坪施工方案陜西瑞森建設(shè)工程有限公司2016年元月21日室外道路施工方案及倉庫地坪施工方案1.PlantRoadsandWarehouseTerrace1、廠區(qū)道路及倉庫內(nèi)地坪1.1ConstructionConditions1.1施工條件1.Constructionconditions施工條件(1)Roadconstructiondrawingarrivesonthesite,whichcanbeusedasbasisforconstructionafterdrawingtriage.道路施工設(shè)計圖紙到達現(xiàn)場,并經(jīng)過圖紙會審,可作為施工根據(jù)。(2)Relevantmaterialshavebeenprepared.相關(guān)材料已準備完善。1.2ConstructionArrangement1.2施工布署1.2.1FunctionsofMajorManagersinPlantRoadsandWarehouseTerranceAreas1.2.1廠區(qū)道路、倉庫地坪區(qū)域主要管理人員職能1.Constructiondirector,techniciansandconstructionworkers:beresponsibleforsupervision,controlanddisclosureofallconstructiontechnologies,controlonsafetyqualityscheduleandfillingofconstructionmaterialsincludingconstructionjournalintheirownworkingpart;andberesponsibleforsitesafetyandtechnicaldisclosure.施工主管、技術(shù)員、施工員:負責本部位的全部施工技術(shù)監(jiān)控以及工藝控制、交底,安全質(zhì)量進度的控制,施工日記等施工資料的填寫;負責現(xiàn)場安全、技術(shù)交底工作。2.Qualityinspectors:beresponsibleforqualityinspectionofeachitemintheirownworkingpart,connectingwithmain-contractorandsupervisor,acceptingworksintheirownworkingpartoperatedbyotherrelevantunits,andvariousmaterialscollectingandfilingthemtothedataroom.質(zhì)檢員:負責該部位各分項的質(zhì)量檢查、聯(lián)系總包及監(jiān)理及其他相關(guān)單位對該部位的驗收工作,還有各種資料的收集、交資料室歸檔等工作。3.Safetysupervisors:beresponsibleforsafetyworksintheproject,beresponsibleforsafetysupervisingandorganizinggroupsforsafetylearningunderthesafetydirector’sguidance,andberesponsibleforfillingandarrangingsafetymaterialswithattentionspaidtoprocesscontrol,andfindingandeliminatingsafetyriskstimelyforpreventions.安全員:負責項目的安全工作,安全員在安全主任指導下負責本部位的安全監(jiān)督及組織班組進行安全學習,負責安全資料的填寫、整理,注重過程控制,及時發(fā)現(xiàn)并消除安全隱患,做到防患于未然。4.Measuringgroup:conducthorizontalcontrolandaxiscontrolonthesite,andretestthesiteelevationandaxiscoordinate.測量組:嚴格按照施工專項方案、規(guī)范及設(shè)計圖紙要求,對現(xiàn)場進行水平控制、軸線控制、對現(xiàn)場高程及軸線坐標進行復(fù)測。1.2.2MainConstructionProcess1.2.2主要施工流程Specificconstructionprocessofoutdoorroads:stakingoutinsurveytrenchexcavationpipelayinghandlingoffoundationtrenchroadbedconstructionpavementconcretepouringcurbconstructionroadsidebackfill室外道路具體施工順序:測量放樣溝槽開挖管道敷設(shè)基槽處理路基施工路面混凝土澆筑路側(cè)石施工路邊回填土Specificconstructionprocessofwarehouseterrace:clearupthecultivatedsoiltooldsoillayerifanycultivatedsoilrammedearthindoorbackfillandtampingstablelayeroflime-flyashstabilizedaggregatepolyethylenewaterprooflayingC30concrete(withsteelfiberinit)surfacetreatment(polishing,dust-collecting,spreadingcarborundumevenlyonthesurface,andsurfacehardening).倉庫內(nèi)地坪具體施工順序:如有耕土應(yīng)先清除耕土至老土層素土夯實室內(nèi)回填并夯實二灰碎石穩(wěn)定層聚乙烯防水膜鋪設(shè)C30砼(內(nèi)摻鋼纖維)表層處理(打磨、吸塵、面層均勻鋪灑金剛砂、表面硬化)。1.2.3LaborOrganization1.2.3勞動力組織Scientificandrationallabororganizationisoneoftheimportantfactorsforsuccessfulprojectproceeding,distributinglaborpowertimelyaccordingtoprojectactualschedule.Wewillassignthemoseexcellentandexperiencedconstructionteamtoworkonthesitethroughinvestigation,whichwillbetrainedforsafetyknowledgebeforeoperatingandorganizetechnicaldisclosureinaseriousmanner.Thepersonnelsinspecialworktypesshouldworkwithcertificates,gettingdowntoworkassoonasenteringthesiteintime.科學合理的勞動力組織,是保證本工程順利進行的重要因素之一。根據(jù)工程實際進度、及時調(diào)配勞動力。我們將通過考察指定最優(yōu)秀的、有豐富經(jīng)驗的施工隊伍進駐本現(xiàn)場。進場作業(yè)前進行安全知識教育培訓,認真組織技術(shù)交底。特殊工種持證上崗,按時入場后迅速進入工作狀態(tài)。MajorLaborForceSchedules主要勞動力計劃表No.序號WorkType工種Unit單位Quantity數(shù)量WorkingScope工作范圍Mason泥工person人20Curbbricklaying路側(cè)石砌筑Concreteworker砼工person人15Concretepouring砼澆筑Welder焊工person人2Embeddediron預(yù)埋鐵件Electrician電工person人2Electricforsiteconstruction現(xiàn)場施工用電Backman雜工person人20Sitemaintenance,cleaning,etc.現(xiàn)場維護、清理等1.2.4MainMachineryEquipmentPlanforConstructionSite1.2.4施工現(xiàn)場主要機設(shè)備計劃MainMachineryEquipmentPlanforConstructionSite施工現(xiàn)場主要機械設(shè)備計劃No.序號Machine(equipment)/NameandSpecification機械(設(shè)備)/稱名規(guī)格Unit單位Quantity數(shù)量PowerKW功率KWGrossPowerKW總功率KWRemarks備注1Roadroller20t壓路機20tSet臺12Excavator400挖土機400Set臺23ElectricwelderBX700電焊機BX700Set臺270140Marked已標識4Platevibrator平板振動器Set臺25Internalvibratortype75插入式振動棒75型Set臺34166Concretecarrier/10m3砼運輸車/10m3Set臺12//7Divingpump/Q50潛水泵/Q50Set臺35202forreservation2臺備用8Levelinstrument/AL332水準儀/AL332Set臺1//Qualifiedinforcedinspection,withinvalidperiod強檢合格,在有效期限內(nèi)9Totalstationinstrument/BTS-6082CL全站儀/BTS-6082CLSet臺1//Qualifiedinforcedinspection,withinvalidperiod強檢合格,在有效期限內(nèi)10Theodolite經(jīng)緯儀Set臺1//Qualifiedinforcedinspection,withinvalidperiod強檢合格,在有效期限內(nèi)Projectinthispartplanstofirstlyconstructfire-fightinglanesnearofW-3/W-4,warehouseterraceinthesametimeandfinally,theheavyvehicleroads,truckparkingspaceandgoodshandlingarea.Thebicycleshedshouldbeconstructedalternativelyinaccordancewithsitesituation.本部分工程擬計劃先施工靠近W-3、W-4倉庫的消防車道。同時施工倉庫內(nèi)地坪,最后施工重型道路、貨車停車位及裝卸貨區(qū)域。自行車棚根據(jù)現(xiàn)場實際情況穿插進行。1.3MainProjectConstructionMethods1.3主要項目施工方法1.3.1ConstructionPreparation1.3.1施工準備1.Sitepreparation現(xiàn)場準備(1)Adoptwarningbeltsfortemporaryenclosureonbothsidesoftheconstructionroadaccordingtosectionconstructionsequenceonthesite.按照現(xiàn)場分段施工的順序,對施工道路兩邊采用警戒帶進行臨時圍蔽。(2)Axisandelevationtestinghasbeencompleted.軸線及高程復(fù)核工作已完成。2.Technicalpreparation技術(shù)準備(1)Drawingtriagehasbeencompleted.(1)圖紙會審已完成。(2)Givedualattentiontoconstructionschemecompiling,andpayattentiontokeypointsfocused,withconstructiondrawings,constructionrules,qualitystandardsandoperatingregulationsasguidancedocumentsforconstructionorganization.編制施工方案要兼顧全面,突出重點。以施工圖、施工規(guī)范、質(zhì)量標準、操作規(guī)程作為組織施工的指導文件。(3)Organizeandarrangelaborforceandtechnicalpower,andestablishorganizationforconstructiontechnologyandmachinerymanaging,accordingtoworkamountofsub-project.根據(jù)分項工程的工程量,組織、安排勞動力和技術(shù)力量,建立施工技術(shù),機械管理機構(gòu)。1.3.2EngineeringSurveyControl1.3.2工程測量控制1.Surveyingandlining測量放線Beforeroadconstruction,itisnecessarytore-checkroadaxisandelevation,andconductstakingoutinsurveyafterthereisnoerrorintherecheck.道路施工前,必須進行道路軸線以及高程的復(fù)核,復(fù)核無誤后方可進行測量放樣。Therecheckingmethodisadoptingtotalstationinstrumenttoconducttraverseclosureaccordingtothecoordinatepointsofferedbytheproprietor,withthehorizontalcoordinatecontrolcomplyingwithprecisionrequirementsofsecond-ordertraverseandelevationcontroldeviationcomplyingwithprecisionrequirementsofthird-orderlevel,whicharecontrollingpointsinconstructionmeasuring.復(fù)核方法為采用全站儀根據(jù)業(yè)主給出的坐標點進行導線閉合,平面坐標控制符合二等導線精度要求,高程控制誤差符合三等水準精度要求,作為施工測量控制點。Adoptlevelinstrumenttointroducethesitelevelelevationtotheexistingbuildings,whichisthebasisofmeasuringchannelelevation.Theelevationcontrollinglineshouldbeintroducedtotheseveralexistingbuildingsfromonepointtothesurroundingaccordingtoconstructiondemands.Testeachelevationline.采用水準儀將現(xiàn)場水準點標高引測至現(xiàn)有的構(gòu)筑物上,作為溝道標高測量的依據(jù)。標高控制線應(yīng)根據(jù)施工需要從一點向四周引測至現(xiàn)有建構(gòu)筑物多處,對于各條標高線,應(yīng)予校測。2.Axistestingandlaying:軸線測設(shè):Intheaxistestingandlayinginthisproject,totalstationinstrumentortheodoliteareadopted,tryingtoreduceintroducedcontrollingpointstoreducedeviations.本工程軸線的測設(shè)采用全站儀或是經(jīng)緯儀,盡量減少引出控制點,從而減少誤差累加。Accordingtothecontrolgridofplantplanconstruction,conductlocationandlining,andpreparecontrollingpilesofallmainaxiseswhicharethestandardoflocationinspectionandembeddedpartsadjustmentinroadconstruction.根據(jù)廠區(qū)平面施工控制方格網(wǎng)進行定位放線,做好各主軸線的控制樁,作為道路施工中定位檢查及預(yù)埋件調(diào)整的基準。3.Technologyqualityrequirements:工藝質(zhì)量要求:Theplancontrollingpileshouldcomplywithprecisionrequirementsofsecond-ordertraverse;andtheelevationcontrollingpileshouldcomplywithprecisionrequirementsofthird-orderlevel.平面控制樁應(yīng)符合二級導線精度要求;高程控制樁應(yīng)符合三等水準精度要求。Themeasuringinstrumentstobeusedshouldpassthroughannualinspectionandbeinaperfectusingstatus;professionalpersonnelinmeasuringshouldchooseproperwhetherconditiontomeasure,whichcanensureagodintervisibilityforallpilepositions,avoidinginfluencesfromconstructionmachinesandpersonnel;regularlyrecheckallmeasuringpointseverymonthtoensureaccuracy.所用測量儀器須經(jīng)過年檢,處于完好使用狀態(tài);測量由專業(yè)人員,選擇合適天氣條件進行,所有樁位應(yīng)通視良好,避開施工機械和人員的擾動影響;所有測點應(yīng)每月定期進行復(fù)核,保證準確性。1.3.3ConstructionMethods1.3.3施工方法1.Maintechnicalrequirementsinroaddesign道路設(shè)計主要技術(shù)要求(1)Setlongitudinalseamandpullrodswhentheroadwidthexceeds4500mm,andФ14twistedsteelareadoptedinpullrodinthelongitudinalseam,withthespacingnomorethan1000mm,andthedistancebetweentheoutermostpullandtheseamorfreeedgenomorethan350mm.道路寬度大于4500mm時,設(shè)置縱向縫,并且設(shè)置拉桿,縱縫拉桿采用Ф14螺紋鋼筋,間距不大于1000mm,最外拉桿距接縫或自由邊不大于350mm.。(2)Filltheexpansionseamwithmixturematerialofpitchandrubber,andconductconstructionaccordingto20mmwidth.Ф25roundsteelbarsareusedindowelsteelintheexpansionseam,andthecoverendshouldbeinstaggeredarrangement,withthespacingbeing300mm,andthedistancetotheseamorfreeedgenolessthan150mm.脹縫均采用油膏混合料填縫,按照20mm寬施工。脹縫傳力桿采用Ф25圓鋼筋,套子端應(yīng)在相鄰板中交錯布置,間距300mm,距接縫或自由邊不小于150mm.(3)Thecompactionparameterofgutterbasesis≥0.93;andthecompactionparameterofwarehouseterraceis≥0.94.路槽基底壓實系數(shù)≥0.93;倉庫地坪基底壓實系數(shù)≥0.94。(4)Roadlinesshouldbepressedonroadsurface.路面須壓路紋。2.Roadconstruction道路施工(1)Foundationtrenchexcavation基坑開挖①Conductstakingoutinsurveyaccordingtorequirementsindesigndrawings,andexcavate600mmawayfromtheborder-linemarkingasrequiredindesigndrawings.①根據(jù)設(shè)計圖紙要求進行測量放樣,開挖邊線按照設(shè)計圖紙要求按路面邊線外600mm。②Duringsiteexcavation,constructionworkersshouldconductwhole-precesscontrolaccordingtotheexcavatingborder-line.②現(xiàn)場開挖時,施工員應(yīng)根據(jù)開挖邊線進行全程控制。③Reserve50mm-100mmwhenexcavating,andlaminatewithroadroller(fornolessthan6times)toavoidover-excavatingwhichwillinfluencesthefoundationtrenchbases.③開挖時預(yù)留50mm~100mm,壓路機碾壓(碾壓遍數(shù)不少6遍),以免出現(xiàn)超挖現(xiàn)象,影響基槽地基。④Nextprocedurecannotbeconstructeduntilthefoundationtrenchisacceptedbysupervisorsandrelevantunits.④基槽必須經(jīng)監(jiān)理及相關(guān)單位驗收合格后方可進行下一道工序施工。⑤Transportalltheexcavatedearthtotheassignedspoilground.⑤開挖土方全部外運至指定棄土場。(2)Roadconstructionmethodsandsteps道路施工方法、步驟①Constructionoftrench-connectingstoneofroadbase①路基連槽石施工a.Accordingtodesigndrawings,opentheseamsonroads,separatingthemwithwoodblockorfoamplateontheopenedseamandmarkingwithapparentmarks(seamopeningrequirements:setalongitudinalseamevery4.5meterswidth;andacrosswisestretchingseamaccordingtothe4.5m;setaseamevery100m-300maccordingasrequiredinspecifications).根據(jù)設(shè)計圖紙要求,進行道路分縫,在分縫處采用木板或是泡沫板隔離,并且做出明顯的標記(分縫要求:6m寬設(shè)置一道縱向縫;橫向縮縫按照6m設(shè)置一道;按照規(guī)范要求每100m~300m設(shè)置一道)。b.Choose20theavytypedlaminatingforroadroller,andstartvibratingandlaminatingatthesametimeduringlaminating.b、壓路機選用20t重型碾壓,碾壓過程中,打開振動同時啟動碾壓。c.Choose50-120mmdiameterrubbles,anduseexcavatorforpavementaftertherubblesaretransportedtothesite.Peoplecooperatefortrimming,withthepredictedheightofrubblefillingelevationbeing30-50mm,whichavoidssettlingelevationbeingexcessivelylongandnotmeetingthedesignelevationafterroadrollerlaminating.c、塊石選用粒徑為50~120mm塊石,塊石運至現(xiàn)場后,使用挖機攤鋪,人工配合修整,塊石填筑標高預(yù)高30~50mm,以免壓路機碾壓后,沉降標高過大,而不滿足設(shè)計標高。②Gradedgravelconstruction②級配碎石施工a.Thegradedgravelisin200mmthickness.級配碎石為200mm厚。b.Thelargestdiameterofthegradedgravelshouldnotexceedthatrequiredintechnicalspecifications,withgradedgravelcompositionandplasticityindexmeetingtheregulationsintechnicalspecificationsrequirements.b、級配碎石最大粒徑應(yīng)不大于技術(shù)規(guī)范要求,級配碎石顆粒組成和塑性指數(shù)應(yīng)滿足技術(shù)規(guī)范要求的規(guī)定。c.Beforeformalconstruction,selecttestingsectionforgravellaminating,testinggradingcompositionofmixture,bestwatercontent,uniformity,degreeofcompactionandbearingratioofthegravelbedding,togainthemixturebestcompactionparameter,compactiontimes,compactionproceduresandconstructiontechnologies.c、正式施工前,選取碎石碾壓試驗段,測定混合料的級配組成、碎石墊層的最佳含水量、均勻性、壓實度、承載比,使混合料達到最佳的壓實系數(shù)、壓實遍數(shù)、壓實程序和施工工藝。d.Excavatorsareusedforpavementingradedgravel,withthepredictedheightofpavementelevationbeing30mm,whichavoidssettlingelevationbeingexcessivelylongandnotmeetingthedesignelevationafterroadrollerlaminating.d、級配碎石采用挖機攤鋪,攤鋪標高預(yù)高30mm,以免壓路機碾壓后,沉降標高過大,而不滿足設(shè)計標高。e.Adopt20troadrollerforlamination(inrotationtype)inlaminating,withcompactiontimesnotlessthan2times.e、碾壓采用20t壓路機碾壓(振動型),壓實次數(shù)不少于2遍。f.Conservationbywaterpouringfor3days12hoursafterconstructioncompletion.f、施工完成12小時以后,淋水養(yǎng)護3天。(3)Installationofpavementformwork③路面模板安裝:a.Theplateisshoredbyusing[22channelsteel,reinforcementsareweldedatintervalsof1,500mmalongthechannelsteeltobeconnectedwithaflangeforreinforcing.(Seeinginthefigureasbelow).a、模板選用[22槽鋼支護,沿著槽鋼每隔1500mm焊一道鋼筋連接翼緣,以便加固使用(見下圖)。[22channelsteel[22[22channelsteel[22槽鋼SteelbarofΦ20b.Passlinehangingoperationisperformedaccordingtothesidelineofthepavement,andbackofthechannelsteelisleveledandstraightalongapassline.b、按照路面邊線進行通線,槽鋼背面沿著通線持平順直。c.Thechannelsteelisreinforcedontheoutersideoftheroadsideinaformofpilingagroundanchor,andawoodbeamorasteelpipeisusedasthegroundanchor,shownasbelow:[22channelsteel[22[22channelsteel[22槽鋼Supportofwoodbeam木方支撐GroundanchorSupportofwoodbeam木方支撐Groundanchor地錨d.Thelongitidinalsplicingofthechannelsteelisshownasthefighre:d、槽鋼縱向拼接見下圖:Triangularwoodtippassesthroughsteelbarsontwosidesatsplicingseamandisfilledfirmlytobeusedasastopper三角形木尖穿拼縫處兩側(cè)鋼筋、塞固為止塞10#ironwireisstrappedfirmly[22channelsteel[22Triangularwoodtippassesthroughsteelbarsontwosidesatsplicingseamandisfilledfirmlytobeusedasastopper三角形木尖穿拼縫處兩側(cè)鋼筋、塞固為止塞10#ironwireisstrappedfirmly[22channelsteel[22槽鋼Treatmentofsplicingseamofchannelsteel槽鋼拼縫處處理e.Afterthemountedplateisreinforcedtemporarily,thestraightnessofthesidelineintheplateischeckedbyusingatheodolite.e、模板安裝臨時加固完成后,采用經(jīng)緯儀檢查模板內(nèi)邊線是否順直。(4)Embeddingofpullrodanddrawbar④傳力桿、拉桿預(yù)埋:a.Arrangementofadowelbaratanexpansionseam:ahardpolyvinylchloridepipesleeveofФ30andthedowelbarofФ28(whichiswrappedbyusingaplasticfilm)attheexpansionseaminthecompletionsectionofcasting,andtheembeddingintervalbetweenthehardpolyvinylchloridepipesleeveandthedowelbaris300mm.Seeingthefigureasbelow.a、脹縫處傳力桿的設(shè)置:在先澆筑完成段的伸縮縫處預(yù)埋間距300mm、Ф30硬聚氯乙烯管套筒及Ф28傳力桿(傳力桿用塑料薄膜包裹)。見下圖。Flexibleseamfillingslab軟質(zhì)填縫板Note:Histhethicknessofpavementslab注:H為路面板厚HardpolyvinylchloridepipesleeveofФ30DowelbarofФFlexibleseamfillingslab軟質(zhì)填縫板Note:Histhethicknessofpavementslab注:H為路面板厚HardpolyvinylchloridepipesleeveofФ30DowelbarofФ25attheexpansionseamMixtureofasphaltandrubber油膏混合料Asphaltandoilcoatedpolyvinylchloridefilmwhichis270mminlengthBulksampleofExpansionseam脹縫大樣b、聚氯乙烯管套筒加固采用鋼筋直接錨固于穩(wěn)定層,焊接牢固。c.Themountingofalongitudinalseampullrod:thepullrodisarrangedinaФ14@1000formandisanchoredonthestablelayerdirectlybyusingthereinforcementsandisweldedfirmly.c、縱縫拉桿安裝:按Ф14@1000設(shè)置,拉桿加固采用鋼筋直接錨固于穩(wěn)定層,焊接牢固。(5)Concreteconstruction:⑤砼施工:a.C30concreteisusedforpavementa、路面砼采用C30混凝土。b.Thetrialblendingofthepavementconcreteisperformedstrictlyaccordingtothedesignrequirement.b、嚴格按照設(shè)計要求進行路面砼進行試配。c.Beforecasting,thefinalfinishedsurfaceiscalculatedaccordingtotheslopesettlingrequirementofthedesignedpavement,theelevationoftheconcretepavementismeasuredatarchcamberinthemiddleofthesideform,andcontrolpointsaresetatintervalsof3m;duringthecastingofthepavementwhichis9,000mminwidth,alongitudinalseamisformedinthemiddleofthepavement,andalongitudinalseamplatemustbemountedstrictlyaccordingtotheslopesettlingrequirementofthepavementinthedesigneddrawing.c、澆筑前,應(yīng)根據(jù)設(shè)計路面放坡要求計算出最終完成面,然后在邊模、中間起拱處測量出砼路面標高,并且每隔3m一個控制點;如澆筑9000mm寬路面時,在路中設(shè)置一道縱縫,縱縫模板安裝時必須嚴格按照設(shè)計圖紙路面放坡要求進行安裝。d.Duringtheconcretecastingofthepavement,dischargingpavingisperformedalongthecastingdirection,andaflatplatevibratorandavibrationrodshouldbetrackedinplacetoensurethattherodandthematerialsaresynchronous,sothatthephenomenaofbubblesandslurryingoccur;andthepavementiscompactedinitiallyandgroundalongthetopoftheplatebyusing8#channelsteelwhichis5,000mminlength,arolleroraluminumalloybars,thegrindingelevationofthepavementshouldbe5to8mmhigherthanthepresetheighttoensurethatthepavementconcretewhichissubjectedtowaterclosingandpresspolishmeetstherequirementofdesignelevation.d、路面砼澆筑時,沿著澆筑順序方向進行卸料攤鋪,平板振動器及振動棒跟蹤到位,保證料到棒到,以出現(xiàn)氣泡及起漿為主;采用5000mm長8#槽鋼、滾筒或是鋁合金條沿著模板頂初壓實、磨平,路面磨平標高應(yīng)預(yù)高5~8mm,以保證路面砼閉水、壓光后滿足設(shè)計標高要求。e.Thepresspolishoftheconcretepavementshouldbedividedintothreeprocesses,namelyinitialgrindingaftercasting,secondarypresspolishwithin3hoursaftercastingcompletionandthefinalpresspolishbeforefinalsetting(timeiscontrolledbytouchtrialoffingers);duringthesecondarypresspolish,grindingisperformedbyusingapolishingmachine,thedeformationandunevennessofabrasivediscsofthepolishingmachineshouldbeavoided,thegrindingisperformedfromoneendatwhichtheconcreteiscasttotheotherend,theintersectionlengthsoftheabrasivediscseverytwotimesarenotlessthan20cm,andgrindingmisspositionsdonotoccur.Thepolishingisperformedbytwooperators,onepersonisresponsibleforholdingthemachinetoensurethestabilityofthepolishingmachine,andtheotherpersonmovesapowercord.e、砼路面壓光應(yīng)分三道工藝,澆筑完成后第一道初磨平;澆筑完成后3小時第二道壓光;第二道壓光采用,磨光機進行磨平,磨光機磨片要求無變形且無凹凸現(xiàn)象,磨光時由先澆筑砼一端開始磨向另一端,每兩次磨片相交不少于20cm,且無漏磨處。磨光時,由二個作業(yè)員同時進行,一人撐機,保證磨光機的穩(wěn)定性,一人同時移動電源線。終凝前最后一道收光(以手指觸試控制時間)。f.Gallingofpavementf、路面拉毛Thegallingofthepavementisplannedbyusingarollerorisconstructedbyusingaspecialcuttingmachine.路面拉毛擬采用滾筒拉毛,或者采用專用切割機進行施工。Duringthegallingoftheroller,analuminumalloybarorasteelpipe(whichcannotslide)ispositionedonthepavementinthetransversedirectionaccordingtothelengthoftherollertoavoidtheinfluenceonagallingeffectduetotheinclinationoftheroller,thegallingshouldbeperformedfromonesideofthepavementtotheothersidebeforethefinalsettingoftheconcreteandshouldbeformedatonetime,andiftherollerinclines,presspolishshouldbeperformedimmediately,andthen,thegallingisperformedagain,whereinspacebetweengallinglinesisabout2cm.采用滾筒施工拉毛時,根據(jù)滾筒的長度,在路面橫向處安放一條鋁合金條或鋼管(不能滑動),以免滾筒傾斜,影響拉毛效果,拉毛應(yīng)在砼終凝前從道路一側(cè)拉向另一側(cè),且一次成型,如有傾斜應(yīng)立即進行壓光后,重新拉毛,拉毛線間距約為2cm。Cuttingshouldbeperformedbyusingthespecialcuttingmachineafterthefinalsettingoftheconcrete,linesaresnappedonthepavementformeshdivisionaccordingtothetotalwidthofagroupofcuttingdiscs.Thewidthofagroupofcuttinglinesisabout35cm,thewidthofthepositionwithoutthecuttinglinesisabout65,andcuttingisperformedinastaggeredmodeaccordingtothehalfwidthofthepavement,showninthefigureasbelow,thedepthoftheseamisabout5mm.采用專用切割機切割時,應(yīng)在砼終凝后進行,根據(jù)一組切割片的總寬度,在路面進行彈線分格。切割線一組寬度約為35cm,無切割線位置約為65cm,即按路面一半寬度錯開切割,如下圖所示,縫深約5mm。Beforecutting,thedepthsofcutofthecuttingdiscsshouldbeadjusted,andthecuttingdirectionsofthecuttingdiscsshouldbeadjustedatanytimeduringcutting.Whenthecuttingisstopped,aknobswitchshouldbeturnedoff,thecuttingdiscsareliftedtotheconcretepavement,andrunningisstopped.開始切割前,應(yīng)調(diào)整刀片的進刀深度,切割時應(yīng)隨時調(diào)整刀片切割方向。停止切割時,應(yīng)先關(guān)閉旋鈕開關(guān)、將刀片提至砼路面,停止運轉(zhuǎn)。Duringcutting,thecuttingdiscsshouldbecooledbycoolingwater,andaftercuttingforpartitioningiscompleted,slurryintheseamshouldbewashedimmediatelybyusingpressurewater.切割時,保證刀片有冷卻水對刀片進行降溫處理,切割分段完成后應(yīng)立即采用壓力水對縫內(nèi)的漿水進行沖洗干凈。Schematicdiagramofcuttingseam切縫示意圖Centerlineofpavement路中心線CuttingseamSchematicdiagramofcuttingseam切縫示意圖Centerlineofpavement路中心線Cuttingseam切縫Widthofpavement路寬(6)Maintenanceofconcreteplate⑥混凝土板養(yǎng)護:Maintenancecanbeperformedwithin12hoursaftertheconstructionoftheconcreteplate,amaintenancemethodforwateringtheplasticfilmfor2to3timesaroundonedayandnightisadopted,andthemoisttimeiskeptforover7days.Themaintenanceoftheconcreteplateshouldbeguardedbyspecially-assignedpersons,andnoentryforstrangers;whenthestrengthoftheconcreteis40%(about4to7days),peoplecanpassthrough;aftertheconcreteispouredfor12days,andthestrengthis70%,trolleyandligh-dutytrafficvehiclescanpassthrough;andafterconcreteispouredfor28days,andthestrengthis100%,theconcreteplatecanbeusednormally.Aftermaintenanceexpires,thecoverageisremoved,sothattheplatedoesnotleavetraces.Theformworkshouldberemovedbycarpenters,cornersoftheconcreteisnotallowedtobedamaged,theintegrityoftheplateshouldbekeptasfaraspossible,andparticularlytheseamshouldberemovedbythespecially-assignedperson.混凝土板面施工完成后12小時內(nèi)即可進行養(yǎng)護,采用塑料薄膜養(yǎng)護方法,上面澆水,一晝夜?jié)菜?~3次,保持濕潤時間不小于7天。在混凝土板養(yǎng)護期間,設(shè)專人進行監(jiān)護,禁止通行;當混凝土達到40%強度時(約4~7天)允許人行;在混凝土澆灌12天、強度達到70%允許小車、輕型交通車通行;在混凝土澆灌28天、強度達到100%后正常使用。養(yǎng)護期滿后將覆蓋物清除,板面不留痕跡。拆模應(yīng)由木工進行,不得損壞混凝土的邊角,盡量保持模板的完整,特別是接縫位置,要由專人進行拆除。(7)Seamsawingandseamfillingofpavement⑦路面鋸縫、填縫:a.Afterthepavementiscastfor48hours,theseamcanbesawn,thecontractionseamissawnina4,500mmformaccordingtothedesignrequirement,thewidthoftheseamis8mm,andtheseamisfilledbyusingamixtureofasphaltandrubber;thelongitudinalseamisreservedina4,500mmformduringthecastingoftheconcretepavement;theexpansionseamisreservedattheconstructionseamaccordingtotheactualon-siteconstructioncondition.a、路面澆筑砼48小時以后開始鋸縫,按照設(shè)計要求,縮縫按4500mm鋸一道,縫寬為8mm,采用瀝青橡膠混合料填縫;縱縫在澆筑砼路面時按4500mm留一道;脹縫則根據(jù)現(xiàn)場實際施工情況留置在施工縫處。b.Achalklineforsawingtheseamisejectedontheconventionalpavement,andoperatorsperformstraightseamsawingoperationaccordingtothechalkline.b、在現(xiàn)有路面上彈出鋸縫的墨線,作業(yè)人員根據(jù)進行平直鋸縫。c.Theseamisfilledbyusingthemixtureofasphaltandrubberatthepositionof40mmoftheexpansionseamsurfacecourse,andthepullrodisarrangedinthemiddle;c、脹縫面層40mm采用瀝青橡膠混合料填縫,中間設(shè)置拉桿;(8)Constructionofkerb⑧路緣石施工:a.Measurementandloftingofkerbonroadsideareperformedstrictlyaccordingtotherequirementofthedesigndrawing;a、嚴格按照設(shè)計圖紙要求先進行路側(cè)石測量放樣;b.C25precastroadteethareusedasthekerbs,andthespecificsizesare320×120×990mm;b、路緣石選用C25砼預(yù)制道牙,具體尺寸為320×120×990mm;c.Beforethekerbsarebuilt,passlinehangingoperationshouldbeperformedaccordingtothesidelineontheouterside,sothatthekerbsarebuiltaccordingtothepasslineontheouterside.C20finestoneconcretewhichis30mminthicknessispavedatthebottomofthekerbs.Thekerbsaresplicedandarrangedaccordingtoakerbmodule,andseamsamongthekerbsarefilledbyusingcementmortarof1:3afterthekerbsarebuilt.Afterthestrengthmeetstherequirement,soilcanbebackfilled.c、路緣石砌筑前應(yīng)按照外側(cè)邊線進行通線,根據(jù)外邊通線進行砌筑。路緣石底部鋪30厚C20細石砼。路緣石按照路緣石模數(shù)拼排,砌筑完后采用1:3水泥砂漿填縫,間縫隙為2mm。待強度滿足后,方可回填土。d.Thekerbmoldis320×120×495(485)mmatthepositionofasmallarcofcornering.d、在轉(zhuǎn)彎小弧位位置,路緣石模數(shù)采用320×120×495(485)mm。3.Maintechnicalrequirementsofindoorterracedesignofwarehouses3、倉庫室內(nèi)地坪設(shè)計主要技術(shù)要求(1)Cultivatedsoilshouldberemovedtotheoriginalsoillayerandcompactedduringtheindoorbackfillingofthewarehouses,andthecoefficientofcompactionis0.94.(1)倉庫室內(nèi)回填如有耕土應(yīng)先清除耕土至老土層并夯實,夯實系數(shù)0.94。(2)Aconstructionschemeoflightcompactionandmultipletimesisadoptedduringcompactiontoensurethecompactionquality.(2)夯實采用輕夯多遍施工方案,以保證夯實質(zhì)量。4.Constructionofindoorterracesofwarehouses4、倉庫室內(nèi)地坪施工(1)Excavationoffoundationpits(1)基坑開挖Foundationpitsareexcavatedaccordingtotherequirementofthedesigndrawing,andcultivatedsoilisremovedtotheoriginalsoillayer.根據(jù)設(shè)計圖紙要求進行基坑開挖,清除耕土至老土層。2)Theoriginalsoiliscompacted,andthecoefficientofcompactionis0.94.②老土夯實,夯實系數(shù)不小于0.94。3)Afterfoundationtrenchesmustpassacceptanceinspectionofsupervisorsandrelevantunits,theconstructionofthenextprocesscanbeperformed.③基槽必須經(jīng)監(jiān)理及相關(guān)單位驗收合格后方可進行下一道工序施工。4)Excavatedearthworkistransportedoutwardstotheassignedspoilground.④開挖土方全部外運至指定棄土場。(2)Constructionmethodandstepsforterraces(2)地坪施工方法、步驟1)Backfillingofplainsoil①素土回填a.Plainsoilmustbesubjectedtobackfillinginlayersandisgroundcompactlybyusingthe20troadroller,thelayeringthicknessis200to300mm,andthecompactioncoefficientisnotlessthan0.94.a、素土回填必須分層回填,并采用20t壓路機碾壓密實,分層厚度為200~300mm,壓密系數(shù)不小于0.94。b.Thecontentoforganicmattersinthebackfillingsoildoesnotexceed5%,andthebackfillsoildoesnotcontainfrozensoil;andwhenbrokenstonesoccur,thegraindiametersarenotsuitabletobegreaterthan50mm.b、回填土料內(nèi)的有機物含量不得超過5%,也不得含有凍土;當還有碎石時,其粒徑不宜大于50mm。(2)Constructionoflime-flyashcrushedstonestablelayer②二灰碎石穩(wěn)定層施工a.Thelime-flyashcrushedstonestablelayerisnotlessthan100mminthickness.a、二灰碎石穩(wěn)定層不小于100mm厚。b.Thequalityofrawmaterialsiscontrolledstrictly,andthematerialswhichdonotmeetrequirementsarenotused.Thematerialsshouldbeselectedbasedontheprincipleofthecomparisonofqualitywitheconomy,namelystrivingtoeconomyonthepremiseofmeetingthequalityrequirement.b、嚴格控制原材料的質(zhì)量,不使用不符合要求的材料。在選材上應(yīng)做到質(zhì)量經(jīng)濟比較,在滿足質(zhì)量要求的前提下,力求經(jīng)濟。Lime:itshouldmeetrequirementsofvarioustechnicalindexesofthelimeofoverIIIlevel,thedissolvedlimeshouldbeadoptedandfedinbatches,sothattheconstructionspeedisnotinfluenced,excessivestorageisavoided,andthestackingtimeisshortenedasfaraspossible;andifthestoragetimeislong,thelimeshouldbecoveredforsealingtobekeptproperly.石灰:要符合Ⅲ級以上石灰各項技術(shù)指標的要求,采用消解后的石灰,石灰要分批進料,做到既不影響施工進度,又不過多存放,盡量縮短堆放時間;如存放時間稍長應(yīng)予覆蓋,并采取封存措施,妥善保管。Coalash:ithasthechronically-solidifiedeffectinlime-ashsoilconstructionundertheexcitationofthelime,sothatthelater-periodstrengthisenhanced.Therefore,thecoalashwhichisfine,largeinspecificsurfaceareaandsmallinignitionlossanddoesnotcontainagglomerates,humicsorotherimpuritiesshouldbeselected,whereinthetotalcontentofSiO2,AL2O3andFe2O3isnotlessthan70percent,theignitionlossdoesnotexceed10%,andthespecificsurfaceareaisgreaterthan2,500cm2/g(or90%ofcoalashpassesthrough0.3m

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