Page 94 - 2022年第53卷第11期
P. 94

[37] 郑珊,吴保生.黄河小北干流和渭河下游淤积过程模拟[J].水利学报,2014,45(2):150 - 162.
                [38] 吴保生,王光谦,王兆印,等.来水来沙对潼关高程的影响及变化规律[J].科学通报,2004(14):1461 - 1465.
                [39] 郭庆超,胡春宏,陆琴,等.三门峡水库不同运用方式对降低潼关高程作用的研究[J].泥沙研究,2003
                       (1):1 - 9.
                [40] 张俊华,许雨新,张红武,等.河道整治及堤防管理[M].郑州:黄河水利出版社,1998.
                [41] 周文浩,陈建国,李慧梅.三门峡水利枢纽的后评价:潼关高程及遏制渭河下游淤积的对策[J].泥沙研
                       究,2001(3):1 - 9.
                [42] 胡健,戴清,袁玉平.渭河下游河道泥沙分布特性研究[J].人民黄河,2008,30(9):23 - 25.
                [43] 陈建国,胡春宏,戴清.渭河下游近期河道萎缩特点及治理对策[J].泥沙研究,2002(6):45 - 52.
                [44] 张红武,赵连军,钟德钰,等.三门峡水库运用方式研究报告[R].北京:清华大学,2004
                [45] 李凌云,吴保生.渭河下游平滩流量的预测[J].清华大学学报:自然科学版,2010,50(6):852 - 856.



                             Studyontheriverbederosionandpredictionbasedonequilibrium
                                            responsemodelinfluvialchannels

                                                 3
                              1,2
                                                                                    1,2
                                                                1,2
                     JINGHuan ,ZHANGHongwu,WANGYanjun ,WANGYongqiang ,ZHONGDeyu                    3
                     (1.ChangjiangRiverScientificResearchInstitute,HubeiKeyLaboratoryofWaterResources&Eco - EnvironmentalSciences,
                                                    Wuhan 430010,China;
                    2.ResearchCenterontheYangtzeRiverEconomicBeltProtectionandDevelopmentStrategy,CWRC,Wuhan 430014,China;
                           3.StateKeyLaboratoryofHydroscience&Engineering,TsinghuaUniversity,Beijing 100084,China)

                  Abstract:Theprincipleofriverdialecticsisusedtoanalyzethetemporalandspatialevolutiontrendofnonequilib
                  rium fluvialrivers.Itisfoundthatthedeviationoffluvialsystemcausedbydisturbancessuchaschangesinwater,
                  sedimentorboundaryconditionsgenerallyexhibitsthecharacteristicsoftemporalandspatialattenuation.Inthe
                  processofapproachingthenewequilibriumstate ,theinteractionbetweentheflowandtheriverbedalwayscauses
                  thedeviationtobeadjustedinthedirectionofdecreasing,followingthe“equilibriumcharacteristics”or“equilibri
                  umresponseprinciple ”.Onthebasis,throughassumingthedisturbanceprobabilityconformstoPoissondistribu
                  tionandtheresponseintensityofindividualdisturbancesatisfiesexponentialdecaylawovertime ,thispapergivesa
                  preliminaryequilibriumresponsemodel.Theregularitytestofthemodelusingcollectedgeometryobservationsin
                  channelsdownstreamofdamsintheUnitedStatesshowsthattheresponseintensityofthefluvialrivertodisturbance
                  declinesnonlinearlyovertimeandspace,reflectingthetemporalandspatialequilibriumtrendofriverevolution.In
                  thedeepeningresearchstage ,thedifficultyofsedimentinitiationandtheflowintensityareselectedtoreflectthe
                  twocontradictoryrolesthataffectthesedimentmovementstateontheriverbed ,andtheratioofthetwoisusedasa
                  riverdynamicparametertoquantitativelydescribetheequilibriumdecaycoefficient.Followingtherelatedparame
                  tersarecalibrated ,themodelhasthefunctionofquantitativelysimulatingthecumulativeriverbeddegradation
                  downstreamofthereservoir.Then ,thecalibratedmodelbasedonthemeasureddatainthelowerreachesofSanme
                  nxiaReservoirisusedtopredictthestreamwiseerosionfollowingtheconstructionofGuxianReservoirinthemiddle
                  YellowRiverandthebackwarderosioncausedbythedegradationofTongguanelevationinthelowerWeiheRiver.
                  TheresultsshowthatthecumulativeriverbeddegradationatLongmenandTongguanis1.84mand1.43m ,respec
                  tively.Meanwhile,thefurthestdistancethatbackwarderosionwavecanpropagateinthelowerWeiheRiveris
                  about250km ,andthecumulativeriverbeddegradationofHuaxianandWeinansectionsare0.54m and0.25m,
                  respectively.Thispaperprovidesanewmethodforthepredictionofthenonequilibriumtemporalandspatialadjust
                  mentprocessoffluvialrivers ,andtheresearchresultshavegreatengineeringapplicationvalue.
                  Keywords:fluvialchannel;equilibriumresponsemodel;YellowRiver;temporalandspatialevolution;stream
                  wiseerosion ;backwarderosion;GuxianReservoir

                                                                                    (责任编辑:李福田)





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