1、西安理工大學(xué)碩士學(xué)位論文小浪底水庫運用后黃河下游游蕩性河段河勢變化分析研究姓名：端木禮明申請學(xué)位級別：碩士專業(yè)：水文及水資源指導(dǎo)教師：沈冰20020101StudyonflowstatechangetrendofwanderingsectionoflowerreachesoftheYellowRiverwhenXiaolangdiProjectputintooperationCandidate：Duan—mllLimingAdviser

2、：ShenBingAbstractThefiversectionfromTieshu，Mengjin，HenanProvincetoGaocun，ShandongProvice，isawanderingsection，withthelengthof299kmThesectionarewideandshallowtheflowstateofthesectionisturbulentwithaswingmainflowSothatthese

3、ctionisthekeyanddifficultfactortegulatetheIowerYeIIowPdverInordertocontroIthefloodandtomitigatewangeringoft11esectionsincethebeginningofbuildingwatercontrolworksontheYellowRiversome3700dams，battlementsandrevetmentshavebe

4、edsetupnleseworkshaveplayedanimpotantroleinfloodcontr01whanXiaolangdiProjectcompletedandputintoorperation，theinflowofwaterandsedimentconditionwil】bechangedbecauseoftheregulationofthereservoirEspeciallytheinitial14yearsth

5、ereservoirwillholdupsedimentandreleaseclearwaterwhichmayaffecttheriversectionsinHenanProvinceespeciallythewanderingsectionsItwillresultinchangesofflowstateandendangeringthewaterworks，becausethelongitudinaladdendbyscoutin

6、gandJatera】slopefailureThusitisneccessarytoanalyzeandpredictthechangeofthiswanderingriversection，sothattoadoptthesuitablecountermeasuresinadvanceThedissertationfoCUS011themainconflictofflowandsedimentchange，byanalyzingth

7、eflowandsedimentfeatures，andchangeinrivercourseoftypicalperiodinhistrycollectingthedataofriverbedchangeAccordingtotheflowandsedimentchangecondition，combiningtlleexistedwaterworks，andbasedontheresultsoffo／Tnerresearches，t

8、hestudyareconductedonthe1awofflowstatechangebycomparingrivercourseconditionsbeforeandafterthecompletionofSanmenxiaProjectwhichmayprovidesomeideaforflowstatechangewhenXiaolangdiProjectcompletedandputintooperationandsomeba