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1、installation;Continuousproductionlineismainlyusedforembeddedelevationbenchmarksintheinstallationoftheequipment.(3)thepipelineengineeringmeasurement1.Thecontentmeasurement.Pipelineengineeringmeasurementincludes:watersupplyanddrainagepipes,allkindsofmediumpipeline,ameasureofthelong-distancepipeline,e
2、tc.2.Themeasuringsteps(1)accordingtothedesignandconstructiondrawings,familiarwiththepipelinelayoutandprocessdesignrequirements,accordingtotheactualmeasureddata,terrainmapconstructionplanesketchandsketchofthecrosssection.(2)accordingtotheflat,measureofpipelinesectionsketch,pay-offandthepipelineconst
3、ructioncontrolsurvey.(3)inthepipelineconstructionhasbeencompleted,tothefinalmeasurementresultsmap,completedsection.3.Themethodofmeasurement(1)thepipelinecenterpositionmeasurementmethodWhenpositioningonthebasisof:positioningbaseonthepipelinelocationofexistingbuildings,canalsoaccordingtothepipelinelo
4、cationandcontrolpoints.Forexample,thebeginningandendofthelineandtheturningpointreferredtoasthemainpoint.Itslocationhasbeendetermined,inthedesignofpipelinecenterlocationisthemainpointlocationlayouttotheground,andtimberorconcretepilecalibration.(2)thelinemeasurementmethodofelevationcontrolTofacilitat
5、ethepipelineconstructionaltitudeandlinelongitudinalandcross-sectionalsurvey,temporarylevelshouldestablishpipelineinstallation.Itspositioningdeviationshouldbeallowedtomeetregulations.Levelingpoints,forexample,aregenerallyselectedinsidecorneroftheoldbuildings,stepsandthebedrockifnoproperfeatures,such
6、astemporarysignsasabenchmarkshallbeburiedinadvance.(3)theundergroundpipelineengineeringsurveyingUndergroundpipelineengineeringmeasurementmustbeinfrontofthebackfill,measure,checkpoint,thecoordinatesofCMCandtubetopelevation,floorplanshouldbecompletedaccordingtothemeasureddatacompilationandlongitudina
7、lprofile.4P032(4)longdistancetransmissionlinetowerframe(tower)foundationconstructionmeasurement1.Thelongdistancetransmissionlineslocateandafterchecking,accordingtoa,checkpointandtheturningpointandtheactuals
