Page 111 - 《水资源与水工程学报》2024年第2期
P. 111

!35 "!2 #                         & ' ( ) & * + , -                               Vol.35No.2
               2024 $ 4 %               JournalofWaterResources&WaterEngineering                 Apr.,2024

            DOI:10.11705/j.issn.1672-643X.2024.02.12


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              (1. ½í:+ 2]45]´¢¯^8&eq9xyz{, ½í 300350;2. õc:+ 45¢¯+a, ⁠õc 330031)
                 B C: £ãÙ¶°}ž:㡶°µ’™.C}šuÇ#。€Ë¶°}}š#õö, 7¯23¹Ð, ÓÔ
                 2›—Ä2¿ÀÕzü'ÀŽ, OGºg}šëüHŠ2+£cœ~¦^ô‰#½¾。Ä2¿ÀÕz¹./
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                 }š#OP¾¥n݌, Ê'ÀŽëìz{¾¿ÀÕz¦kl—。ëìíî: ¶ã¡¹ 5400m /s µ, qˆ
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                 HŠ2+£c, ç@“ ~m + ím” ¢)¶°¦œÙ, ím¦¶ã¡O;»¶°µ¦ 5400m /s T‰¹¢)¶°µ
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                 ¦~m¶ã¡ 3481m /s+ ím¶ã¡ 1919m /s, ím}š¦#3URSákO 182.3 μ m‰äs 51.7 μ m, #
                                                      3
                 Ã‰ñì¹ 71.6%; ím¶ã¡¹ 10030m /s µ, qˆË}š¶·$…, }š¦#3URSákE 288.8
                 μ m‰äs 129.6μ m, #Ã‰ñì¹ 55.1%。
                 DEF: £ãÙ¶°}; }š#; ‰#½¾; ¿ÀÕz; 'ÀŽ
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                 GHIJK:TV662 .2;TV663 .2   LMNOP:A    LQRK:1672643X(2024)02010708
                          Analysisoffloodgatepiervibrationinducedbyunderflow
                                  dissipationandvibrationreductionmeasures

                                                                               2
                                                                2
                                                                                        2
                                                   1
                                        1
                               LIUFang,LIUQing,LIHuokun,HUANGWei,LIUBo,
                                                    2
                                                                                  2
                                                                 2
                                       TANGYiyuan,LIYuekang,WANGWentao
                   (1.StateKeyLaboratoryofHydraulicEngineeringIntelligentConstructionandOperation,TianjinUniversity,Tianjin
                      300350,China;2.SchoolofInfrastructureEngineering,NanchangUniversity,Nanchang330031,China)
                 Abstract:Underflowdissipationfloodgatesaresubjectedtoseverepiervibrationsduringhighflowdis
                 charge.Addressingtothisissue,thehydraulicelasticitymodeltestandprototypeobservationofahydro
                 powerstationwereconducted,withwhichtwovibrationreductionmeasuresofimprovingpierstructure
                 andoptimizingreservoirregulationschemeswereproposed.Themodeltestprovideddatasupportforthe
                 analysisofpiervibrations ,whiletheprototypeobservationvalidatedthereliabilityofthemodeltest.
                                              3
                 Whenthedischargeflowis5400m /s,thecombineddischargeapproachof“loworificesandsurfaceor
                                                                         3
                 ifices”canreducetheflowthroughsurfaceorificesfrom5400m /sinstandalonedischargeto1919
                                                            3
                  3
                 m /sincombineddischarge,andtherest3481m /scandischargefromtheloworifices.Inthiscase,
                 thestandarddeviationofpiervibrationdisplacementatsurfaceorificesdecreasesfrom182.3to51.7
                 μ m,achievingavibrationreductioneffectof71.6%.Whenthedischargefromthesurfaceorificesrea
                             3
                 ches10030m /s,reinforcingthepierscanreducethestandarddeviationofpiervibrationdisplacement
                 from288.8to129.6μ m,leadingtoavibrationreductioneffectof55.1%.
                 Keywords:underflowdissipationfloodgate;floodgatepiervibration;vibrationreductionmeasure;mod
                 eltest ;prototypeobservation






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