Page 79 - 2022年第53卷第10期
P. 79
33(1):1 - 5,9.
[11] 唐小娅,童思陈,许光祥,等.三峡水库汛期泥沙淤积对坝前水位的滞后响应 [J].水 科 学 进 展,2019,
30(4):528 - 536.
[12] 王彦君,吴保生,钟德钰.黄河下游主槽断面形态对水沙变化响应过程的模拟[J].地理学报,2020,75
(7):1494 - 1511.
[13] 侯素珍,胡恬,杨飞,等.三门峡水库汛期排沙效果研究[J].水利学报,2021,52(4):393 - 400.
[14] 杨光彬,吴保生,章 若 茵,等.三 门 峡 水 库 “318” 控 制 运 用 对 潼 关 高 程 变 化 的 影 响 [J].泥 沙 研 究,
2020,45(3):38 - 45.
[15] 刘宁.大江大河防洪关键技术问题与挑战[J].水利学报,2018,49(1):19 - 25.
[16] WUBS,WANGGQ,XIAJQ.Casestudy:DelayedsedimentationresponsestoinflowandoperationsatSanme
nxiaDam [J].JournalofHydraulicEngineering,2007,133(5):482 - 494.
[17] 吴保生,郑珊,沈逸.三门峡水库冲淤与 “318运用” 的影响[J].水利水电技术,2020,51(11):1 - 12.
[18] 胡春宏.从三门峡到三峡我国工程泥沙学科的发展与思考[J].泥沙研究,2019,44(2):1 - 10.
[19] 谢鉴衡.河床演变及整治[M].武汉:武汉大学出版社,2013.
[20] 吴保生,邓癑.三门峡水库河床纵剖面的调整[J].水利学报,2005,36(5):549 - 554.
[21] 张瑞瑾.河流泥沙动力学[M].北京:中国水利水电出版社,1998.
[22] SURIANN,RINALDIM.MorphologicalresponsetoriverengineeringandmanagementinalluvialchannelsinItaly
[J].Geomorphology,2003,50(4):307 - 326.
[23] 郑珊,吴保生,侯素珍,等.三门峡水库时空冲淤与滞后响应[J].水利学报,2019,50(12):1433 - 1445.
Calculationmethodforerosionanddepositionprocessesin
theSanmenxiareservoirbasedondelayedresponsemodel
1
2
1
SHENYi,ZHENGShan,WUBaosheng
(1.StateKeyLaboratoryofHydroscienceandEngineering,TsinghuaUniversity,Beijing 100084,China;
2.StateKeyLaboratoryofWaterResourcesandHydropowerEngineeringScience,WuhanUniversity,Wuhan 430072,China)
Abstract:Basedonthegeometricrelationshipofequilibriumprofilesofreservoirdepositionandmechanismanaly
sis ,thecalculationformulasofequilibriumvalueofTongguan’selevationandaccumulateddepositioninthereser
voirareobtained.Consideringthefactthatchanneladjustmentratevarieswitherosionanddepositionstateandwa
terandsedimentconditions ,thecalculationmethodsofTongguan’selevationandaccumulateddepositionarees
tablishedbasedonsingle - stepmodeofdelayedresponsemodel.Theresultsshowthatthecoefficientofdetermina
2
tionR betweenthecalculatedandmeasuredvaluesofTongguan’selevationis0.80and0.75in1975 - 2002and
2
2003 - 2018respectively ,andthecoefficientofdeterminationR betweenthecalculatedandmeasuredvaluesofac
cumulateddepositionis0.95and0.84in1967 - 2002and2003 - 2018respectively.Byusingtherelationshipbe
tweenquasiequilibriumstateanddecayrate ,therelaxationtimerequiredforTongguan’selevationandaccumula
teddepositiontoreachquasiequilibriumstateiscalculated.TheresultsshowthattherelaxationtimeforTongguan’s
elevationtoreachquasiequilibriumstateisabout10.2years,therelaxationtimefortheaccumulateddepositionto
reachquasiequilibriumstateisabout6.7years.ItshowsthatthechangeofTongguan ’selevationdelayedbehind
thechangeofaccumulateddeposition.Inaddition, theperiodbyperiodadjustmentprocessofTongguan’s
elevationandaccumulateddepositioncharacterizedbyaimingattheequilibriumvaluereflectstheautomaticadjust
mentanddelayedresponsecharacteristicofriverbedevolution.
Keywords:Sanmenxiareservoir; reservoirsedimentation; Tongguan’selevation; delayedresponse; Quasi -
equilibriumtime
(责任编辑:韩 昆)
2
— 1 1 7 —