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Denso300222DensoDenso。。DensoU657.3TU473.13A1003-3688201102-0008-02CombinationofCathodicProtectionwithDensoAnti-corrosionTechniqueforSteelPipePilesLIYun-feiTANGCongCHENTaoCCCCTianjinPortEngineeringInstituteCo.Ltd.Tianjin300222ChinaAbstractThispaperdescribesthecombinationofcathodicprotectionbysacrificialanodewithDensoanti-corrosiontechniqueforsteelpipepileswhichhasbeenoccurringcorrosioninawharfofYingkouPortintroducestheconstructiontechniquesoftheDensoanti-corrosiontechniqueanddesignprocessofcathodicprotectionbysacrificialanode.Theresultprovestheeffectofprotectionissatisfactory.Itcanprovidereferencesfortheprotectionofsteelpipepilesinrelevantwaterarea.KeywordssteelpipepilecorrosioncathodicprotectionDensoanti-corrosion2010-10-212010-12-131982—。70[1]、、、5[1-2]。、、、。0.03～0.08mm/a0.3～0.5mm/a。3～10[13-4]。。、、。———、。Denso。1、2m。E－160Sa2.5-1.5m1mm-1.5m2m0.6mm2002200430a。。。ChinaHarbourEngineering201142173Apr.2011Total173No.220112674.4、、、30aAl-Zn-In-Mg-Ti1250mm×200+240mm×180mm137kg884。。55.1。1Ω准16。5.2CO22、。30a90％。Denso。Denso、、、、、。、。3Denso3.1Denso、。DensoS105DensoHDPE。Denso1。ST2.0。22mmDensoS105。DensoUnderWaterMastic。。3。50%~55%。。、。。、。4。、。3.2200810Denso。2009、、、、。。44.1[5-6]11mA/m2、21mA/m256mA/m225mA/m2、20mA/m220mA/m2。4.2[5-7]、-780～-1050mVAg/AgCl。4.31。1/m221902.0728651.3050553.37/A240.92459.941226.52662.56541.99558.70903.481001.931785.22Denso9··20112。2、480mm5mm、、、。5.3。-780～-1050mVAg/AgCl[8]。2。6。。[1].[J].2007284174-175.[2].[M].1999.[3]M.[M]..19858.[4]BaorongHouJizhouDuanJingleiZhangetal.TestsforHangingSteelSpecimensinSeawater[J].MP2002411045-49.[5]JTS-153-3—2007[S].[6]EN13174—2001Cathodicprotectionforharbourinstallations[S].[7]GB/T4948—2002--[S].[8].[J].2008321-23.2123-994~-1011-990~-1009-992~-1021-995~-1012mV9!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!17.5kW、5.5kW。5.5kW7.5kW。25准50×准22。3、、。。、、、17.5kW、5.5kW3~6。225mm、22mm50mm40mm、30mm。3准30×准20、、3。[1].[J].1990324-35.[2].[J].2003146-47.[3].[J].2010372-74.b7a10864207531024612108642075310246/m3·-1/m3·-17.5kW5.5kW7.5kW5.5kW67··