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1、于家下河社区安置区项目基坑工程监测大纲批准：马建仲审核：项目负责：编写：刘鹏山东省城乡建设勘察院青岛分院2013年3月meetthestandardrequirements.Postweldheattreatmentofpipesafterheattreatment,hardnesstestsshouldbeconducted,hardnesstestsamplingofnotlessthan10%,hardness120%,15CrMohardnessofcarbonsteelpipeshallbelessthanbasemetalsteelafterheatt
2、reatment,hardnessshouldnotbegreaterthantheparentmaterialof125%.Rateofpipelinenondestructivetestingshallbecarriedoutaccordingtothedesignrequirements,nonodesignrequirementstheSH3501-2002table10"percentageofradiographicexaminationofweldedjointsandacceptablelevel",andfixednumbernotlesstha
3、nthetotalnumberof40%weldinspection.Thisprojecthasawallthicknessof32mm20#steelhighpressuretube,x-rayscannotpenetrate,thesituationmaynotallownon-destructivetestingbyγ-ray,usedweldbackingandtwo-layerweldsbeforefilledbyxraydetectionmethod,theotherlayerbyultrasonicdetectormethod.Shouldbeco
4、nsistentwithexistingnationalstandardsforradiographictestingofthe...Gastankusedchainforthisprojectpromotedtheupsidedownconstruction.Chainreversalinstallationmethodshowninthefollowingfigure:weldersWeldersandweldingmethodstoparticipateinthisprojectshouldbeinaccordancewiththeMinistryofper
5、sonnelissuedbytheboilersandpressurevesselswelderexaminationrulesforqualificationexamination,afterpassingthequalificationcertificateofweldingwork.Tankweldingmanualarcwelding,automaticwelding.Manualarcweldingcompanyhasanumberofexcellentwelder,tookpartinallkindsoflarge,mediumandsmallstor
6、agetank,pressurevesselwelding,withrichexperience,manualweldingcharacteristicsarenotsubjecttolocationrestrictions,weldingdeformationeasytocontrol.Thisengineeringweldingconstructionofshieldedmetalarcweldingmethods.2目录1.工程概况12.监测依据13.监测目的、监测项目及监测精度13.1监测目的13.2监测项目及监测精度24.监测方案24.1监测设备24.2
7、监测项目报警值24.3基准点布置24.4监测设备埋设24.5监测频率34.6监测方法44.7监测数据整理54.8监测数据应用55.对监测数据结果的要求66.监测成果67.监测过程控制要求78.安全与文明施工7meetthestandardrequirements.Postweldheattreatmentofpipesafterheattreatment,hardnesstestsshouldbeconducted,hardnesstestsamplingofnotlessthan10%,hardness120%,15CrMohardnessofcarbonste
8、elpip
