Page 56 - 2024年第55卷第10期
P. 56
Reviewondeformationmonitoringforhighearth - rockdams
1,2
3
1
1,2
1,2
4
MAGang ,AIZhitao ,GUOChengqian,LiShaolin,CHENHua,ZHOUWei
(1.StateKeyLaboratoryofWaterResourcesEngineeringandManagement,WuhanUniversity,Wuhan 430072,China;
2.InstituteofWaterEngineeringSciences,WuhanUniversity,Wuhan 430072,China;
3.CISPDRCorporation,Wuhan 430010,China;
4.SchoolofGeodesyandGeomatics,WuhanUniversity,Wuhan 430079,China)
Abstract:Thecoordinatedcontrolofdeformationinearth - rockdamsiscrucialforensuringtheirsafetythroughout
theirentirelifespan.Accurateandreliabledeformationmonitoringisthefoundationforassessingdeformationbehav
iorandimplementingdeformationcontrolofearth - rockdams.Thedesignandconstructiontechnologyoftheearth -
rockdamsinChinahasnowachievedworld - leadingstandards ,withtheheightofthesedamsreachingthelevelof
300m.Theirsafetymonitoringtechnologyhasalsoseensignificantadvancements.Thispapersummarizesthede
velopmentandapplicationsofdeformationmonitoringtechnologyforearth - rockdams,introducingtheworking
principles,applications,technicaladvantages,andlimitationsofnewinternalandexternaldeformationmonitoring
technologiessuchasdistributedfiberopticsensing ,pipelinemonitoringsystems,GNSS?BDS,andInSAR.The
progressinthemonitoringdatacompilationisalsobrieflyintroduced.Severalrecentlycompletedandunder - con
structionhighearth - rockdamshaveinitiallyformedatrendofmulti - technologycoordinationanddensemonitoring
pointsindeformationmonitoring,providingcomprehensiveinsightsintothedeformationbehaviorofearth - rock
damsandadatafoundationfordamsafetyassessment.Inthefuture,itisnecessarytofurtherenhancethereliabili
tyandlifespanofmonitoringinstruments,developmonitoringtechnologiessuitableformegaearth - rockdamswith
ultra - thickoverburdenlayers,andresearchtheoriesandmethodsformanagingmassiveamountsofmulti - source
heterogeneousmonitoringdata,tocomprehensivelyimprovethesafetymonitoringcapabilitiesanddatamanagement
ofearth - rockdamsundercomplexconditions.
Keywords:earth - rockdam;deformationmonitoring;multi - sourceheterogeneousdata;compilationofmonitoring
data;instrumentlifespan;datagovernance
(责任编辑:李 娜)
(上接第 1173页)
Keyissuesandprogressinelectricitymarketswithhighproportionofhydropower
1
1
1
1
2
CHENGChuntian,LIYapeng,LIGang,CAIHuaxiang,SHENJianjian,LIShushan 3
(1.InstituteofHydropower&Hydroinformatics,DalianUniversityofTechnology,Dalian 116024,China;
2.KunmingPowerExchangeCenter,Kunming 650011,China;
3.ElectricPowerDispatchingandControlCenter,ChinaSouthernPowerGridCompanyLimited,Guangzhou 510663,China)
Abstract:ThehydropowerdevelopedinSouthwestChinaandtheupperreachesoftheYangtzeRiverneedstobe
transportedoutonalarge - scale ,anditshighproportioninthepowergridmakesitnotonlyimperativebutalso
challengingtoparticipateinthecomplexelectricitymarketintheseregions.Coreissuesforhydropowerparticipa
tionintheelectricitymarketincludehowtoavoidstructuralandcompetitivewaterspillageandpowershortages ,
andhowtoachieveeffectivepeakregulationforthegrid.Thispapersummarizesfourkeyissuesofhydropower
participationintheelectricitymarket,brieflyoutlinesthesituationsofhydropowerparticipationinthepowermar
ketinBrazil ,NorthernEurope,YunnanandSichuanprovincesofChinaandtheSouthernPowerGridofChina,
andpresentsfoursignificantadvancementsfrom theperspectiveofpracticalapplication.Theefficientmodeling
undercomplexboundaryconditionsofhydropowerhasgreatlyimprovedthesolvingefficiencyofhydropowerpartic
ipationinspotmarketsandbiddingcompetitions,enhancingtheprecisioninpowertrading.Marketboundary
safeguardsforhydropowerprovideprerequisitesformarketparticipation,enhancinghydropower’ssupplysecurity
forthegrid.Theclearingmethodofspotmarketwithhydropoweraddressesissuesoflowclearingefficiency ,com
petitivewaterspillage,anddifficultexecutionoftransactionresultsinspotmarketsincludinghydropower.The
hydropowerbiddingmethodoffersafeasibleapproachtoreasonablyallocatemarketresources ,reducesuncertainty
risks,predictcompetitors’biddingbehaviorandstrategies,andbalanceshydropowerrevenuewithpeakregula
tion ,ecological, and navigation responsibilities.As the goals ofcarbon peaking and carbon neutrality
accelerate,keyfutureworkinvolvesleveragingmarketmechanismstomaximizethesupplycapacityandgreen
valueofhydropowerelectricity,aswellastheflexibilityofhydropoweroutput.
Keywords:highproportionhydropower;electricitymarket;hydropowerbidding;clearingofspotmarketwith
hydropower ;marketboundarysafeguards
(责任编辑:韩 昆)
— 1 1 6 —
8