摘要
AmovablebedphysicalmodelwasconstructedtoinvestigatehydraulicdesiltationbyflushingandlateralerosionintheTapureservoir,Taiwan.Themodelscalingisbasedontherequirementfordynamicsimilarityofcohesivesedimentdepositinitiationinflushingprocesses.Formodelscaling,flumeexperimentsinvestigatingtheinitiationofcohesivesedimentdepositswerecarriedouttoestablishtherelationshipbetweencriticalshearstressoftheflowanddrydensityofthedeposit.Experimentsinthephysicalmodelwerethenperformedtomeasurethevariationsofthereservoirwaterlevel,theoutletdischargeandtheoutflowsedimentdischarge.Theprocessesofemptyingandflushingwereobservedandanalyzedinthemainflushingchannel.Oneoftheexperimentswasconductedtosimulatetheon-siteflushingoperationsonJune11,1997.Theresultsshowedthatthetotalcumulativeflushedsedimentvolumebyphysicalmodelingwasclosetothatbynumericalsimulation.Todealwiththefloodplaindeposits,experimentsoflateralerosionasanauxiliarymethodwerealsoconductedinthephysicalmodeltoinvestigatetheeffectivenessandapplicabilityfortheTapureservoir.
出版日期
2001年03月13日（中国期刊网平台首次上网日期，不代表论文的发表时间）
