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1、TheRequestforProposalofHooverDamLStatementofworkWiththemainfunctionofplanstobuildthedaminfloodcontrolandirrigationwatersupply,powergenerationandothercomprehensiveeffect,thearchitectureisaconcretewith2.6millionm3ofconcretearchdam.Thedamis221.3mhigh,crestlength379
2、.2m,thetop13.7mwide,dambottomwidth201.2m.Thesizeofthehydropowerstation:Hydroelectricpowerislocatedbehindthedam,withtherightfactoryinstalled8businessunits,ontheleftbankworkshopinstallationwithninebusinessunits,inadditiontounit2setsforprivateuse.Installedcapacityo
3、f2.08millionkw,generating4billionkw-h.Fourintaketowerbuiltinfrontofthedarninthereservoir,fourdiameteris9.14m,thetotaldeliveryand19diameteris3.99mofpressuresteelpipeareinstalledinonbothsidesofthetunnel.Onbothsidesoftheriverbeddamfoundationandabutmentmainlycompose
4、doflava,rockhard,inadditiontoveryshallowtabledepartment(m)onlyweatheringisflabbyJointfissuredevelopment,rockmassintegrity,highrangewithoutamajordiscontinuityindamfoundation,damupstreamordownstreamoutsidethefoundationpithasafault,270mapart.1000〜11()0ftelevationin
5、bankslopeisrelativelyslow,mainlylithologyrelativelypoor,weakweatheringresistance,breccia.But,whetherlavaorbreccia,theuniaxialcompressivestrengthofthewetaverageismorethan100mpa.Thedeepestriverbedcover38m.Seismicintensity8°〜9°.Thehooverdam'sbedrockishardandesitean
6、dbreccia.Itsriverbedisnarrowandsteeponbothsides.Lowwaterleveltothedepthofthebedrockis33〜40m,lowof42.4m,widthoflowwaterlevelofthewateris88-113m.Table1:dataCost5billiondollarHumancost<10Thedamheight221.4metersThedamlength379.2mDamthickness200mthickConcretequantity
7、3.33millioncubicmetersCapacity2080megawatts2.Requirements2JThedamwhichwillbeconstructedneedtoachievethefollowingpurposes:(1)Canbeiirigatedfarmland.Forthousandsofyears9eachspringandearlysummer,theColoradoRiverduetothelargesnowmeltrunoffimport,resultinginriversflo
8、odedinlow-lyingareasandpubliclifeandpropertysufferedseriouslosses.Butinthelatesummerandearlyautumn,riversdriedupagainlikeatrickle,whichcannotirrigatethefarmland・Inord
