钢管桩外加电流阴极保护设计与效果评价  

Design and evaluation of impressed current cathodic protection for steel pipe piles

作　　者：陈志强[1] 李海洪 CHEN Zhi-qiang;LI Hai-hong(CCCC-FHDI Engineering Co.,Ltd.,Guangzhou,Guangdong 510230,China;Key Laboratory of Harbor&Marine Structure Durability Technology,Ministry of Communications,Guangzhou,Guangdong 510230,China)

机构地区：[1]中交第四航务工程勘察设计院有限公司,广东广州510230 [2]水工构造物耐久性技术交通运输行业重点实验室,广东广州510230

出　　处：《中国港湾建设》2023年第2期25-29,共5页China Harbour Engineering

摘　　要：钢管桩码头外加电流阴极保护系统处于严苛海洋腐蚀环境并面临台风侵袭,系统设计在确保满足阴极保护规范要求的同时,还需重点关注各系统组件的长期耐久性能。基于湛江港某码头钢管桩外加电流阴极保护系统设计,详细介绍了关键参数的决策过程,包括电流计算中涂层破损率的取值、阴极保护电源的设计选型和布置以及布线系统设计。5 a的运行结果表明,阴极保护系统设计整体上是成功的,系统运行状态与设计意图基本符合。The impressed current cathodic protection system for steel pipe piles is in a harsh marine corrosive environment and faces typhoon attack.While ensuring that the system design meets the cathodic protection specifications,it is also necessary to focus on the long-term durability of each system component.Based on the design of an impressed current cathodic protection system for steel pipe piles in Zhanjiang Port,the decision-making process for the key design parameters was described in details,including the selection of paint coating breakdown factors in electric current calculation,the design and selection as well as the arrangement of cathodic protection power supply,and the design of wiring system.Five years'operation of the impressed current cathodic protection system showed that the design of the cathodic protection system was overall successful and the status of operation of the system was basically in line with the design intent.

关 键 词：外加电流阴极保护 钢管桩 设计 

分 类 号：U656.114[交通运输工程—港口、海岸及近海工程] U655.544.1[交通运输工程—船舶与海洋工程]