淤泥庫放水塔水力特性研究.pdf

1、西安理工大學(xué)碩士學(xué)位論文淤泥庫放水塔水力特性研究姓名：鄧瑩瑩申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：水工結(jié)構(gòu)工程指導(dǎo)教師：張宗孝馬斌20080301西安理工大學(xué)碩士學(xué)位論文RESEARCHONHYDRAULICCHARACTERISTlCSOFTHEWATERRELEASETOWERINSILTRESERVOIRMajor：HydroElectricStructureEngineeringName：YingyingDENGsignature：私嗍切嘞S

2、upervisor：SrengineerZongxiaoZHANGsjgnature必吁妒ProfBinMASignature：№眵為ABSTRACTThewaterreleasetowerwasextensiveappliedinsiltreservoirreplacesliepipeasashaftwaterreleasestructllresbecauseofitsmeritsThesemeritsincludethestabil

3、izationofleakageflowthegoodcapabilityofdefendsfillup，thelonglifespanthesimplestructure，thelessercostesksytomanageandSOonTherelevantdatashowthatourcountrywillincreasetheconstructionofdamprojectinthefuture，andproposetocons

4、tructabout163tenthousandseatsInotherwords，moreandmorewaterreleasetowerwillbeextensiveappliedHowevertheresearchonhydrauliccharacteristicofthewaterreleasetowerisratherless，SOtheengine粥couldn’tgetenoughdetaileddataasreferen

5、ce，asaresulttheengineersmadeunnecessarywastesandevenhiddentroublew弱existedduringthedesignprocessThispaperisonthebasicofthesevenreservoirsprojectofJINGBIANcountywhichisplannedtenlovedangerandreinforce，meantimethehydraulic

6、characteristicofwaterreleasetowerisstudiedthroughmodelexperimentationThisexperimentationchosefiveinfallindifferentheightofthetowerfrombottomtotop，whicharebottomorifice，upsideoneorifice，upsidetwoorifice，upsidethreeorifice

7、andupsidefourormceThekeyresultsofthismodelexpedmem戤a(chǎn)sfollows：1)Intheexperimentprocess，wecouldfinoutsomephenomenabyobservingtheflowconditionindifferentheightandangleWecouldseethattheinfallwereallfreedomleakageflowwhenthei

8、nfallandoutlet’axisangleWaszerodegree，hewerwhentheinfallandoutlet’axisanglewas岫degree，sixtydegree，ninetydegreeHoweverwhenthebottominfallWassubmergedbuttheupsideinfallwerestillfreedomleakageflow2)Thechangeoftheinfall’Shei

9、ghtandanglemadealittleinfluenceonleakageflowbutthechangeofthebottominfall’SanglemadealotinfluenceonleakageflowThenthesubmergecoefficiemoaboutthebottominfallcouldbefoundoutTherelationshiphowtheoschangedwith忽／Handangle，and