简介：Previousstudiesathomeandabroadhavemainlyfocusedonsingledam-break,andlittleattentionhasbeenpaidsofartothedam-breakofcascadereservoirs.Multi-sourceflooding,whichcanleadtothree-dimensionalturbulentphenomenaandsuperpositioneffects,isthemaindifferencebetweenthedam-breakofcascadeandsinglereservoirs.Detaileddescriptionsofthecouplednumericalsimulationofmulti-sourcefloodinghavelittlebeenreported,andtheinitialwetriverbedisrarelyconsideredincurrentmodels.Therefore,inthispaper,amethodbasedonthethree-dimensionalk_eturbulencemodelcoupledwiththevolume-of-fluidmethodisproposedtosimulatethedam-breakfloodingofcascadereservoirs.Theupstreamriver,reservoir,anddownstreamriverareconnectedbytheinternalboundarymethod,andtheinitialconditions,includingriverflowandreservoirwater,aredeterminedaccordingtotheresultsofthenumericalsimulation.Couplednumericalsimulationofdifferentdam-breakfloodingisthenachieved.Thepresentworksolvesthechallengespresentedbytheenhancementandsuperpositionofnaturalriverflow,upstreamflooding,anddownstreamflooding.Thispaperprovidesatheoreticalbasisforfuturestudiesonthedam-breakfloodroutingofcascadereservoirs.

简介：Comparedwithurbanfloods,dam-breakfloodsareassociatedwithgreateruncertainties,includingvariabledam-breakmodesandhydrologicalcharacteristics,soconventionalfloodestimationmethodscannotbedirectlyappliedintheestimationofdam-breakfloodloss.Inparticular,thereisscantinformationregardingtheconditionsofaffectedareaandhydrologicalcharacteristicsinsouthwestChina.Inthispaper,weintroduceanintegratedmodelforestimatingfloodlossthatisadaptedtothemountainousregionsofsouthwesternChinainlightoftherelativelackofavailableinformation.Thismodelhasthreemajorcomponents:abasicinformationmodel,adam-routedfloodpropagationsimulationmodel,andalossestimationmodel.Weestablishedthebasicinformationmodeldespitetherelativelackofavailableinformationusing3Stechnology[remotesensing(RS);geographicalinformationsystem(GIS);globalpositioningsystem(GPS)],dataminingtechnology,andstatisticalanalysistechniques.Ourdam-routedfloodpropagationsimulationmodelconsistsofmajorhydrologicprocessesandtheirgoverningequationsforflowpropagation,whichwesolveusingfinite-differenceschemes.Inthismodel,thefloodpropagationareaisdividedintogridsandeachgridisdeterminedbythecharacteristicparametersobtainedfromthepropagationsimulation.WepresentacasestudyoftheLianghekouhydropowerstationinSichuanProvince,Chinatoillustratethepracticalapplicationofthisintegratedmodelforlifelossestimation.

简介：为鉴别在压缩压路机的水泥(RCC)的滚动的层自动地建水坝的一个计划被介绍。首先，一个概念的模型被开发。由使用一个计算几何学方法，第二，卷在卷压缩之间匹配的层和汽车的汽车鉴定用机器制造并且滚动的层基于空间控制点被认识到。到GuandiRCC水坝的构造的一个应用程序证明卷层的汽车鉴定在保证设计质量起了一个重要作用。

简介：即时监视和3D可视化分析系统为水坝基础窗帘grouting被建议。基于即时控制技术，优化方法和集合理论，系统的一个数学模型被建立。grouting数据的即时收集和传播技术为系统提供一个数据基础。监视的即时grouting和动态惊动方法帮助系统在grouting期间控制grouting质量这样，处理grouting的畸形，例如jacking并且水力高举，能有效地被控制。另外，3Dgrouting可视化分析技术被建议建立grouting信息模型(GIM)。GIM提供一个平台设想并且分析grouting过程和结果。系统作为案例研究被用于中国的一个水力的工程，并且应用程序结果显示监视的即时grouting和为grouting进程的3D可视化分析能帮助工程师更高效地控制grouting质量。