26085.廣西地區(qū)泥石流數(shù)學(xué)模型的研究及應(yīng)用

1、天津大學(xué)碩士學(xué)位論文廣西地區(qū)泥石流數(shù)學(xué)模型的研究及應(yīng)用姓名：呂會(huì)驕申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：水利工程指導(dǎo)教師：李大鳴201112ABSTRACTDebrisflowisakindofnaturaldisasterthatdirectlythreatensthesecurityofhuman’Slifeandpropertyandseriouslyimpedesthesustainabledevelopmentofthesocialecon

2、omicThisarticlepresentsamathematicalmodelofdebrisflowbasedonhydrodynamictheoryThemathematicalmodelisappliedinforecastingthedebrisflowwhichhasimportantacademicsignificanceandapplicationvalueInthispaper，theinitiatemechaniz

3、ationisstudiedofthreestagesandfivecities’administrativeareasofGuangxiprovinceastheregionboundaryBasedonthehydrodynamictheorythemathematicalmodelofdebrisflowisintroducedincludingtherealtimerainfallprocess、confluenceandrun

4、offManyfactorssuchasgeographygeology，climateandhydrologyvegetationandpopulationareconsideredinthismathematicalmodelElevation、boundaryandriverinformationareextractedfromDEMwithG1SFortranprogramminginterpolateandgeneratest

5、hecalculatingmeshesbyFinitevolumemethodAllthefactorssuchasvelocitygradient，geologyvegetationcoverageandpeopledistributionarealldigitizedTheriverchannelsareconsideredtobetwomodelsasgeneralizationandgradingcoding，andbaseon

6、whichtheriSkofdebrisflowiscalculatedComparingthesimulatedresultswiththoseobtainedfromgeologydisasterdistributionchart，theregionoccurringdebrisflowisnearlvthesame，themathematicalmodelofdebrisflowcanbeusedforriskassessment