資源描述：
《construction lofting（施工放樣作業(yè)）》由會(huì)員上傳分享，免費(fèi)在線閱讀，更多相關(guān)內(nèi)容在應(yīng)用文檔-天天文庫(kù)。
1、Constructionlofting（施工放樣作業(yè)）Settingoutwork(1)Constructionlofting(1)constructionsurveyloftingprocessflowdiagram;(two)constructionsurveyloftingmethodandrequirements;I.instructionsTheguidebookiswrittenaccordingtotheconventionalmethodoflofting,loftingpersonnelmu
2、staccordingtotheactualsituation,suchasprecision,thedistributionofcontrolpoints,theexistingequipment,siteconditions,calculationtooltoselectthemeasurementsiteandloftingpointsDifferentcombinationsofdifferentdesignmethodsanddifferentmethodsofnuclearexamination.
3、Differentprojectandthesameprojectofdifferentstages,differentpartsoftheloftingsiteaccuracyrequirementsaredifferent,sotheaccuracyrequirementsofthesiteandloftingpointsarenotthesame.Duringtheoperation,pleasestrictlyimplementthe"engineeringsurveyspecifications",
4、"highwayconstructionsurveyspecifications"and"constructionsurveycontrolprocedures".Therestrictionmentionedinthisbookreferstothelimitationofthespecification.Iftherearespecialrequirementsinthedesign,itwillbecarriedoutaccordingtothedesignrequirements.Two,dataco
5、llectionandloftingplanformulation1.beforesurveyingandsettingout,theplaneandelevationcontroldataoftheconstructionareashallbeobtainedfromthelegalandeffectiveway.2.,accordingtothesitecontrolpointsignsarestableandwell,andsoon,theexistingcontrolpointdataanalysis
6、,todeterminewhetherallorpartofthecontrolpointsfortesting.3.,theexistingcontrolpointscannotmeettheprecisionrequirements,shouldberelayoutcontrol,theexistingcontrolpointdensitycannotmeettheneedsoflofting,shouldbeencryptedaccordingtotheexistingcontrolpoints.4.,
7、accordingtotheformaldesigndrawings,documents,modifynoticeofmeasurementlofting,notwithoralnoticeandunauthorizeddrawingslofting.5.,accordingtothespecificationsanddesignrequirementsofprecision,andcombinedwithpersonnelandequipmentconditions,formulatemeasuringlo
8、ftingplan.Itscontentsshouldinclude:detectionandencryptionofcontrolpoints,layingoutbasis,settingoutmethodandprecisionestimation,loftingprocedures,personnelandequipmentallocation,etc..Three.Preparebefore
