《水电工程单元工程质量等级评定标准第2部分：金属结构及启闭机安装工程》（NB-T 35097.2-2017）英文版

ICS27.140

P26

RecordNo.:J2457-2018

EnergySectorStandardofthePeople'sRepublicofChina

PNB/T35097.2-2017

ReplacesSDJ249.2-88

QualityGradeEvaluationStandardof

UnitWorksofHydropowerProjects

Part2:InstallationofHydraulicSteel

StructuresandHoists

水电工程单元工程质量等级评定标准

第2部分：金属结构及启闭机安装工程

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