Page 59 - 2023年第54卷第9期
P. 59

Developmentoftheundergroundreservoirsofpumped - storage
                                           hydropowerandkeyhydraulicsissues

                                                 GAOXueping,YUANZeyu
                       (StateKeyLaboratoryofHydraulicEngineeringSimulationandSafety,TianjinUniversity,Tianjin 300072,China)

                  Abstract:Therearemorethan1millionabandonedminesintheworld,andthenumberofabandonedminesin
                  Chinawillreach15 ,000by2030.Howtorationallyutilizetheundergroundspaceresourcesofabandonedmineshas
                  becomeahottopicinthefieldofenergyandenvironmentalprotection.Theundergroundreservoirsofpumped - stor
                  agehydropowercanbeconstructedbyusingabandonedspacessuchastunnels ,chambers,ormined - outareas.
                  However ,becauseofitsnarrowandclosedundergroundspaces,itiscompletelydifferentfromtheopenspaceswa
                  terareaofthesurfacereservoirsofconventionalpumped - storagehydropower.Thehydrauliccharacteristicsofthe
                  undergroundreservoirsarecompletelydifferentfromthoseofthesurfacereservoirswhenthepumped - storagehydro
                  powerisbuiltandoperated.Therefore,thispaperanalyzesthemodeandcharacteristicsoftheundergroundreser
                  voirsofpumped - storagehydropower.Theprogressofundergroundreservoirconstructionofpumped - storagehydro
                  powerathomeandabroadissummarized.Thekeyhydraulicissuesoftheundergroundreservoirsofpumped -
                  storagehydropowerareputforward.Theresearchresultswillprovideguidanceforthescientificuseofabandoned
                  minestobuildundergroundreservoirsofpumped - storagehydropower.
                  Keywords:pumped - storagehydropower;abandonedmines;undergroundreservoirs;hydrauliccharacteristics


                                                                                    (责任编辑:李福田)




              (上接第 1057页)
                              Researchonapplicationofinfraredthermalimagingtechnology
                                               ingeomechanicalmodeltests

                                    DINGZelin,WANGXiangyu,XULiangjie,WANGJing
                     (SchoolofWaterConservancy,NorthChinaUniversityofWaterResourcesandElectricPower,Zhengzhou 450046,China)

                  Abstract:Atpresent,themeasurementmethodsofgeomechanicalmodeltestsaremainlycontactedmeasurement
                  methodssuchaselectronicmeasurementandfibergratingmeasurement,andthecontactmeasurementequipment
                  willaffectthemodelstructureintheprocessofarrangement.Inordertoexplorethepossibilityofanalyzingthe
                  geomechanicalmodeltestfromtheenergypointofviewandtorealizethepurposeofnon - contactandfigurative
                  measurementduringthetest ,infraredthermalimagingreal - timemeasurementtechnologywasadoptedtomeasure
                  themodeloverloaddamagetestinthegeomechanicalmodeltestofcementedsandandgraveldam (CSGdam for
                  short ).Theresultsofthestudyshowedthat:(1)thestructuralsurfacessuchasfaults,fractures,andjointsin
                  themodelwillleadtolocaltemperaturerisewhenthestructuralsurfaceinthemodelfoundationisextrudedand
                  misshapedunderexternalload;itwillcauseitslocaltemperaturetorise;thecontrastofmodelthermographyand
                  thevalueofmaterialtemperaturechangecanbeusedasabasisfordiscerningdaminstability. (2)Inthemodelma
                  terialdamagetest ,thetemperaturechangevalue Δ Tofmaterialdamagewasobtainedbythermalimagerintherangeof
                  1.2 - 1.8℃,andthedamageareashowsobvioustemperaturechange,andobviousanomaliescanbefoundfrom
                  thetestsiteandinfraredimages ,andthedamagecriterionbasedonthermalimagingtestisproposedinthisway.
                                                                         =
                  (3)WhenthemodeltestwasoverloadedtotheoverloadsafetyfactorK p 6.6 ,thetemperaturechangevaluesof
                  eachstructuralsurfacepenetrationareaofthefoundationinitsthermalimagereachedthedamagethreshold ,and
                  thenthetestdamwasdestabilizedbyslipandoverturning.
                  Keywords:geomechanicalmodeltests;concretemeasurement;infraredthermography;structuralsurfacetem
                  perature

                                                                                    (责任编辑:李 娜)

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