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.