防腐技术在南水北调PCCP工程中的应用李向东

317320098No.3TotalNo.173Aug.20091006－8139200903－18-031~2DN4000PCCP60m3/s。30km14kmpH8.27~8.8PCCPPCCPPCCPPCCP100mV50Ω·m、。PCCP、、、。PCCP。、95%、。PCCP、PCCP。2PCCP。PCCP。2.10.6%2.5kg/m3。。。2.2C55C6048MPa、。、、PCCP。2.3、、。、、、、。3PCCPPCCP。、、、、PCCP030024PCCP。、PCCPPCCP。:PCCPTV672BSHANXIHYDROTECHNICS·18·317320098No.3TotalNo.173Aug.20091PCCP、、、、。600±100μm。PCCP1。、。1/21/21。、、2、、、、、。60PCCP671μm400μm1.6MPa1.2MPa。。3100MΩ10kΩ。4PCCPPCCPPCCPPCCPPCCP。NACERP0100PCCP/CSE100mV-1000mV。25。4.1PCCPNACERP0100PCCPPCCP。Q235A53.3mm、1.5mm、5000mm。PCCP。L、。PCCP。、、。PCCP2180°。60PCCP0.4Ω1.0Ω3PCCP。4.2PCCPPCCP6。100Ω·m631100Ω·m331332。PCCP23

22.2mm14.8mm112.7mm15.8mm1PCCP·19·317320098No.3TotalNo.173Aug.20095PCCP35002950200295035004mmPCCP。NACERP0100,100mV。PCCP。4。200mm、100mm1/2。50cm。、0.75∶0.20∶0.50。。。PCCP60mm、3mmPCCP、。XLPE/PVC1×25mm20.6/kVPCCP。NACERP0100“”5。。PCCP1.0Ω0.01Ω。PCCP。100m2025mPCCP。1km、、。4.3NACERP0100、PCCP。5PCCP、。1.PCCPJ.2008858-60.2A.W..M...20047-12.3.J.20081303-306.19822005。2009－03－102009－03－2657SHANXIHYDROTECHNICS·20·317320098No.3TotalNo.173Aug.2009!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!ApplicationofcorrosionprotectioninPCCPofSouth-to-NorthWaterDiversionProjectLIXiang-dongAbstract:Thegeo-environmentsalongtheBeijingSectionofSouth-to-NorthWaterDiversionProjectiscompli－cated,deleteriousmediumandstray-currentexist,effectivestepsshouldbetakentocontrolPCCPcorrosion.Theimprovementofpropertiesofconcreteandmortar,theapplicationofanticorrosivecoatingandCP,aregoodmethodstosolvethecorrosionproblemofthepipeline,thesecurityanddurabilityoftheprojectareimproved.ValuableexperienceisprovidedforthefuturePCCPproject.Keywords:South-to-NorthDiversionProjectPCCPcorrosionanticorrosivecoatingcathodicprotection(CP)CalculationandAnalysisonAnnualRunoffofShigaoshanReservoirBAILiAbstractThedrainagebasinwhereisthedamsitehasnotthehydrologicaldata.TherunoffintotheShigaoshanReservoiriscalculatedthroughthehydrologicanalogymethod.Keywords:ShigaoshanReservoirprecipitationrunoff10%80%、。~1256m32。7、3。31980~。19.1%。19671990。2009－03－312009－04－16/m31256CV0.55CS/CV2.723149.5102175501090757519055195475P/%2/mm583.6540.8602.9/mm133.667.6115.0/%22.912.519.13SHANXIHYDROTECHNICS20·57·