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ICS27.140
P26
RecordNo.:J2457-2018
EnergySectorStandardofthePeople'sRepublicofChina
PNB/T35097.2-2017
ReplacesSDJ249.2-88
QualityGradeEvaluationStandardof
UnitWorksofHydropowerProjects
Part2:InstallationofHydraulicSteel
StructuresandHoists
水電工程單元工程質(zhì)量等級評定標準
第2部分:金屬結構及啟閉機安裝工程
Issuedate:2017-11-15Implementationdate:2018-03-01
IssuedbytheNationalEnergyAdministration
AnnouncementoftheNationalEnergy
Administration
2017,No.10
InaccordancewiththerequirementsofNoticeofNationalEnergyAdministrationon
Printing'ManagementMethodforStandardizationofPowerIndustry(onTrial)'and
ImplementationRules(GUONENGJUKEJI[2009]No.52),theNationalEnergy
Administration,uponreview,hasapprovedandpublished204professionalstandardslike
Codeforsafetymanagementofcoalbedmethaneproductionstation,including62energy
standards(NB),86electricpowerstandards(DL)and56petroleumstandards(SY).
Appendix:Catalogueofprofessionalstandards
NationalEnergyAdministration
November15,2017
Appendix:
Catalogueofprofessionalstandards
No.of
StandardStandardImplementation
S.N.StandardnamestandardApprovaldate
No.replaceddate
adopted
…
QualityGrade
EvaluationStandardof
UnitWorksof
NB/TSDJNovember15,
31HydropowerProjects1.1.1March1,2018
35097.2-2017249.2-882017
Part2:Installationof
HydraulicSteel
StructuresandHoists
…
Foreword
CodeofchinaInc.isinchargeofthisEnglishtranslation.Incaseofanydoubtaboutthe
Englishtranslation,theChineseoriginalshallbeconsideredauthoritative.
InaccordancewiththerequirementsofNoticeofNationalDevelopmentandReform
CommissionOfficeonPrintingandPublishingProfessionalStandardProjectPlanin2008
(FAGAIBANGONGYE[2008]No.1242),thestandarddraftinggrouphasrevisedthis
standardthroughtheextensiveinvestigationandstudy,carefulsummarizationofpractical
experienceandonthebasisofwidelysolicitingforopinions.
Themaintechnicalcontentsofthisstandardare:projectclassificationandquality
evaluation,penstockmanufacture,penstockinstallation,installationofplaingate,
installationofradialgate,installationofmitregate,installationoftrashrack,installationof
fixedwinchhoist,installationofmobilehoist,installationofhydraulichoistandinstallation
ofscrewtypehoist.
Themaintechnicalcontentsrevisedinthisstandardareasfollows:
——the"excellent"gradeevaluationstandardofunitworksisrevised.
——theclauseof"projectclassificationandqualityevaluation"isadded.
——thequalityevaluationstandardofunitworksisrevised.
——theinstallationqualityevaluationstandardofplainroller-chaingateissupplemented.
——theinstallationqualityevaluationstandardofeccentric-hingedcompression-typeor
pressure-filledradialgateissupplemented.
——theoriginal"bridgetypehoistinstallationwork"isdeleted.
——theoriginal"hoisttrackinstallationwork"isdeleted.
——theoriginal“Annex1Penstockmanufactureworks”isdeleted.
TheNationalEnergyAdministrationisinchargeoftheadministrationofthisstandard,
whichwasproposedbyandisundertheroutinemanagementoftheHydropowerand
WaterResourcesPlanningandDesignGeneralInstitute.TheTechnicalCommitteefor
HydropowerSteelStructureandHoistsofEnergyIndustryoftheStandardization
AdministrationofChinaisinchargeoftheexplanationofspecifictechnicalcontents.In
caseofanycommentorsuggestionintheprocessofimplementingthisstandard,please
sendittotheHydropowerandWaterResourcesPlanningandDesignGeneralInstitute
i
(Address:No.2,NorthAlley,Liupukang,XichengDistrict,Beijing,100120).
Chiefdraftingorganizationofthisstandard:SinohydroBureau8Co.,Ltd.
Participatingdraftingorganizationsofthisstandard:MechanicalandElectricalCompany
ofSinoHydroBureau8Co.,Ltd.andTianjinInstituteofHydroelectricandPower
Research.
Chiefdraftersofthisstandard:FanYilin,WangQimao,ZengHui,WangJianwen,He
Yinghong,DuYi,LiDongsheng,ZhangJiangandZhangSheng.
Mainexaminersofthisstandard:LinZhaohui,ChenHong,HuBaowen,FangHanmei,
YaoChangjie,ZhangWeiming,ZhaoYongping,LiLili,WanTianming,LuoWenqiang,Jin
Xiaohua,LiaoYongping,YuXiquan,LongZhaohui,YangQinghua,LiLinandLiShisheng.
ii
1Generalprovisions
1.0.1Thisstandardispreparedwithaviewtoregulatingthequalitygradeevaluationof
unitworksforInstallationofHydraulicSteelStructuresandHoistsofHydropowerProjects,
soastoensurequality,safetyandapplicability,technologyadvancementandeconomic
rationality.
1.0.2Thisstandardisapplicabletothequalitygradeevaluationoftheinstallationof
steelgate,trashrackandhoistofhydropowerprojectsaswellastheunitworksfor
manufactureandinstallationofpenstock.
1.0.3Thequalityevaluationofunitworksshallbecarriedoutaftertheresultsofthe
inspectionitemsmeettherequirementsofcorrespondingacceptancespecifications,and
shallbeprovidedwithcomplete,fullandaccurateconstructionrecords.
1.0.4Thequalitygradeevaluationofunitworksforinstallationofhydraulicsteel
structuresandhoistsofhydropowerprojectsshallnotonlycomplywiththerequirements
ofthisstandard,butalsocomplywiththosestipulatedinthecurrentrelevantnational
standards.
2Termsandsymbols
2.1Terms
2.1.1unitworks
theminimumcomplexunitofoneorseveralworktype(s)oftheinstallationofhydraulic
steelstructuresandhoistsofhydropowerprojectsdividedaccordingtothedesign
structure,constructiondeploymentandqualityevaluationrequirements,whichisthebasic
unitforconstructionqualityevaluation
2.1.2partitionedproject
theinstallationprojectwhichcanbecombinedtoexertacertainfunctioninastructureor
building
2.1.3unitprojects
theprojectsconsistingofseveralpartitionedprojectsandprovidedwithindependent
constructionconditionsorindependentfunctions
2.1.4mainitems
theinspectionitemshavingasignificanteffectonthesafety,usefunctionand
environmentalprotectionofunitworks,whicharemarkedbyintheevaluationformsof
thisstandard
△
1
2.1.5generalitems
inspectionitemsotherthanmainitems
2.1.6qualifieditems
themainitemswith100%ofthemeasuredpointsmeetingthequalifiedstandard,or
generalitemswithmorethan90%ofthemeasuredpointsmeetingthequalifiedstandard,
whilethemeasuredvaluesoftheremainingpointsshallnotbegreaterthan1.2timesthe
permissibledeviationofthequalifiedstandard
2.1.7excellentitems
thequalifieditems,ofwhichmorethan90%ofthemeasuredpointshavereachedthe
excellentlevel
2.2Symbols
PSa——thesurfacetreatmentgradeoflocalblast-cleaningincaseofsiteconstruction;
RZ——thesurfaceroughnesssymbol,indicatingthesumofthemeanoffivemaximum
contourpeakheightsandthatoffivemaximumcontourvalleydepthswithinthesampling
length;
Sa——thegradeofderustingthroughblastingorejectingincaseoffactorymanufacture;
δ——theplatethicknessorpipewallthickness;
——thesymbolofamainitem.
△
3Projectclassificationandqualityevaluation
3.1Projectclassification
3.1.1Thequalitygradeevaluationitemsofhydropowerprojectshouldbeclassifiedinto
unitworks,partitionedprojectsandunitprojects.
3.1.2Thequalitygradeevaluationitemsofinstallationofhydraulicsteelstructuresand
hoistsshouldbeclassifiedaccordingtotherequirementsofTable3.1.2.
2
Table3.1.2ClassificationofqualitygradeevaluationitemsofInstallationofHydraulicSteel
StructuresandHoists
UnitprojectsPartitionedprojectsUnitworks
Installationofembeddedpartofplaingate
Installationofplaingateleaf
Installationofembeddedpartofradialgate
SpillwayInstallationofgateandInstallationofradialgateleaf
projectshoistInstallationoffixedwinchhoist
Installationofhydraulichoist
Installationofscrewtypehoist
Installationofmobilehoist
Installationofembeddedpartofplaingate
Installationofplaingateleaf
Installationofembeddedpartofradialgate
SpillwaytunnelInstallationofgateandInstallationofradialgateleaf
(hole)projecthoistInstallationoffixedwinchhoist
Installationofhydraulichoist
Installationofscrewtypehoist
Installationofmobilehoist
Installationofembeddedpartofplaingate
Installationofplaingateleaf
Installationofembeddedpartofradialgate
OverflowdamInstallationofgateandInstallationofradialgateleaf
(hole)projecthoistInstallationoffixedwinchhoist
Installationofscrewtypehoist
Installationofhydraulichoist
Installationofmobilehoist
Installationofembeddedpartofplaingate
Installationofplaingateleaf
Installationofgateand
Installationofhydraulichoist
hoist,installationand
DamwaterInstallationofmobilehoist
manufactureof
diversionInstallationofembeddedpartoftrashrack
penstockand
projectInstallationoftrashrackleaf
installationoftrash
Manufactureofasinglejointorapenstocksegment;installation
rack
ofpenstocksinaconcrete-pouredsegmentoraposition,suchas
installationofbendpipe,inclinedpipeandhorizontalpipe
InstallationofgateandInstallationofembeddedpartofplaingate
hoist,installationandInstallationofplaingateleaf
DiversionmanufactureofInstallationofhydraulichoist
tunnelprojectpenstockandInstallationofmobilehoist
installationoftrashInstallationoffixedwinchhoist
rackInstallationofembeddedpartoftrashrack
3
UnitprojectsPartitionedprojectsUnitworks
Installationoftrashrackleaf
Manufactureofasinglejointorapenstocksegment;installation
ofpenstocksinaconcrete-pouredsegmentoraposition,suchas
installationofbendpipe,inclinedpipeandhorizontalpipe
Installationofembeddedpartofplaingate
Installationofplaingateleaf
PowerplantInstallationofgateand
Installationoffixedwinchhoist
projecthoist
Installationofhydraulichoist
Installationofmobilehoist
Installationofembeddedpartofplaingate
Installationofplaingateleaf
Installationofembeddedpartofradialgate
Installationofradialgateleaf
ShiplockInstallationofgateand
Installationofembeddedpartofmitregate
projecthoist
Installationofmitregateleaf
Installationoffixedwinchhoist
Installationofhydraulichoist
Installationofmobilehoist
Installationofembeddedpartofplaingate
DiversionInstallationofgateandInstallationofplaingateleaf
projecthoistInstallationofhydraulichoist
Installationoffixedwinchhoist
Installationofembeddedpartofplaingate
Installationofplaingateleaf
Installationofhydraulichoist
WaterintakeInstallationofgate,
Installationoffixedwinchhoist
projecthoistandtrashrack
Installationofmobilehoist
Installationofembeddedpartoftrashrack
Installationoftrashrackleaf
3.2Qualityevaluation
3.2.1Thequalityevaluationgradesofunitworksareclassifiedintoqualificationgrade
andexcellentgrade.
3.2.2Aunitworkwillbeevaluatedasqualifiedwhenallofitstestingitemsmeetthe
requirementsofqualifieditems.
3.2.3Aqualifiedunitworkwillbeevaluatedasexcellentwhentheexcellentrateofits
mainorgeneralitemsisabove70%.
4
3.2.4Thequalitygradeevaluationofunitworksshallcomplywiththefollowing
conditions:
1Allconstructionitemsofaunitworkhavebeencompletedandaccepted.
2Allquality-relateddefectshavebeentreatedorprovidedwithtreatmentopinions
approvedbythesupervisionorganization.
3.2.5Thequalitygradeevaluationofunitworksshallbecarriedoutaccordingtothe
followingprocedures:
1Theconstructionorganizationconductstheself-inspectionfortheconstructionquality
ofunitworkscompleted,andapplyforacceptancebythesupervisionorganizationafter
passingtheself-inspection.
2Afterreceivingtheapplication,thesupervisionorganizationshallconductthesampling
re-inspectionandtheacceptance.Theconstructionqualityofimportantconcealedunit
worksandkeypartunitworksshallbejointlyacceptedbyateamcomposedofthe
representativesoforganizationssuchastheconstruction,design,supervisionand
constructionorganizations.
3Theunitworksshallbesubjectedtoqualitygradeevaluationafterpassingthe
acceptance.
3.2.6Thequalitygradeevaluationofunitworksshallincludethefollowingdata:
1Proceduredocumentssuchasconstructiondrawings,constructionschemes,
constructionrecordsandacceptancedata.
2Qualityinspectionrecordformandqualitygradeevaluationformforunitworksfilledin
bytheconstructionorganization.
3Thesamplingre-inspectiondataonwhichqualityopinionsaresignedbythesupervising
engineer.
3.2.7Theformatofqualityevaluationformforunitworksshouldcomplywiththe
requirementsofAnnexAhereof.
4Penstockmanufacture
4.1Qualityevaluationconditions
4.1.1Beforebeingdelivered,thepenstockshallbeinspectedaccordingtothecurrent
nationalstandardGB50766Codeformanufactureinstallationandacceptanceofsteel
5
penstocksinhydroelectricandhydraulicengineering,andsubjectedtodeliveryrecording
aswellasqualitygradeevaluationforunitworksinaccordancewiththosespecifiedin
Clause3.2.
4.1.2Theunitdivisionforqualitygradeevaluationofpenstockmanufactureshallcomply
withthefollowingrequirements:
1Forstraightpipes,bendpipesandgradientpipes,ajointorasegmentisregardedas
aunit.
2Anexpansionjointisregardedasaunit.
3Abifurcationisregardedasaunit.
4.2Inspectionitemsandstandardforevaluation
4.2.1Thequalityevaluationstandardofpenstockcircumferenceandjointlengthshall
complywiththerequirementsofTable4.2.1.
6
Table4.2.1Qualityevaluationstandardofpenstockcircumferenceandjointlength(mm)
ItemQualitystandard
ItemRemarks
No.QualifiedExcellent
Circumferential
±0.003D,with±0.0025D,with
installationseam
absolutevalue≤24absolutevalue≤20
withoutbacking
Differencebetweenthe
Circumferenceof
1actualcircumferenceand
backingofthe
△thedesigncircumference±0.103D,with±0.0025D,with
V-grooveat
absolutevalue≤12absolutevalue≤10
circumferential
installationseam
Circumferential
≤6≤5installationseam
withoutbacking
Circumferenceof
δ<10
backingofthe
≤6≤5V-grooveat
Circumferencecircumferential
differenceofinstallationseam
2
adjacentpipeCircumferential
△
joints≤10≤9installationseam
withoutbacking
Circumferenceof
δ≥10
backingofthe
≤8≤7V-grooveat
circumferential
installationseam
Differencebetweenthe
lengthofasingle-joint
3≤5≤4—
penstockandthedesign
length
Note:D——theinsidediameterofthecircular-sectionpenstock,mm.
4.2.2Thequalityevaluationstandardofflatnessofpenstockorificeshallcomplywiththe
requirementsofTable4.2.2.
Table4.2.2Qualityevaluationstandardofflatnessofpenstockorifice(mm)
Qualitystandard
ItemNo.Item
QualifiedExcellent
FlatnessofpenstockD≤5000≤2≤2
1
orificeD>5000≤3≤2
7
4.2.3Thequalityevaluationstandardofpipejointsectionshapeshallcomplywiththe
requirementsofTable4.2.3.
Table4.2.3Qualityevaluationstandardofpipejointsectionshape(mm)
Qualitystandard
SectionshapeRemarks
QualifiedExcellent
Circumferential
Roundness≤0.003Dand≤30Roundness≤0.003Dand≤25installationseam
withoutbacking
FortheV-groove
withbackingat
WhenthepenstockisequippedWhenthepenstockisequipped
circumferential
Circularwithastiffeningring,thewithastiffeningring,the
installationseam,
differencebetweenthemaximumdifferencebetweenthemaximum
atleast4pairsof
andminimumdiametersoftheandminimumdiametersofthe
diametersare
pipeorificeatthesameendisnotpipeorificeatthesameendisnot
measuredatthe
greaterthan4greaterthan3
pipeorificeof
eachend
ThepermissiblelengthdeviationThepermissiblelengthdeviation
ofthemajoraxisaandtheminorofthemajoraxisaandtheminor
Ovalaxisboftheovalis±0.003aoraxisboftheovalis±0.003aor—
±0.003b,ofwhich,theabsolute±0.003b,ofwhich,theabsolute
valueisnotgreaterthan6valueisnotgreaterthan5
ThepermissiblelengthdeviationThepermissiblelengthdeviation
ofthelongsideAandtheshortofthelongsideAandtheshort
sideBis±0.003Aor±0.003B,ofsideBis±0.003Aor±0.003B,of
Rectangle—
which,theabsolutevalueisnotwhich,theabsolutevalueisnot
greaterthan6andthediagonalgreaterthan5andthediagonal
differenceisnotgreaterthan6differenceisnotgreaterthan5.
ThepermissibledeviationofThepermissibledeviationof
circumcirclediameteris±6;thecircumcirclediameteris±6;the
differencebetweenthemaximumdifferencebetweenthemaximum
Regular-polygon—
andminimumdiametersisnotandminimumdiametersisnot
greaterthan0.003Dandnotgreaterthan0.003Dandnot
greaterthan8greaterthan7
ThelocalflatnessofpenstockisThelocalflatnessofthepenstock
Non-circular—
notgreaterthan4permeter.isnotgreaterthan3permeter.
4.2.4Theinstallationqualityevaluationstandardofthesupportring,stiffeningring,
thrustringanddamringshallcomplywiththerequirementsofTable4.2.4.
8
Table4.2.4Installationqualityevaluationstandardofthesupportring,stiffeningring,thrust
ringanddamring(mm)
Qualitystandard
Stiffeningring,
Item
ItemSupportringthrustringanddamSketch
No.
ring
QualifiedExcellentQualifiedExcellent
Perpendicularityaof
1supportringorstiffeninga≤0.01Hand≤3a≤0.02Hand≤5
ringtopipewall
Perpendicularitybofthe
planeformedbysupport
2b≤0.002Dand≤6b≤0.004Dand≤12
ringorstiffeningringtothe
pipeaxis
Permissibledeviationof
3spacingCbetweentwo±10±30Foreachitemlisted
adjacentringplates
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