洋山港一期工程阴极保护效果及剩余寿命评估  

Assessment of remaining life and protection effect of sacrificial anode for steel pipe piles of Yangshan port phaseⅠproject

作　　者：鲁进亮 张羿 郑伟 

机构地区：[1]中交上海港湾工程设计研究院有限公司 [2]上海申航基础工程有限公司,上海200120 [3]上海港湾工程质量检测有限公司,上海200032

出　　处：《水运工程》2014年第8期50-52,共3页Port & Waterway Engineering

基　　金：国家高技术研究发展计划(863计划)(2012AA051708)

摘　　要：洋山港码头钢管桩防腐采用牺牲阳极阴极保护的方法,在一期已服役10余年后对其运行状况及剩余情况进行查检及寿命评估,通过电位测量、水下探摸、水下摄像、理论计算等方法对牺牲阳极阴极保护效果进行评价和分析。结果表明,洋山港码头一期钢管桩得到有效的阴极保护,阴极保护系统运行良好,但洋山港一期地处水流急、泥沙含量大的钱塘江下游入海口,牺牲阳极受冲刷严重,致使无法满足最初设计使用寿命要求。The sacrificial anode cathodic protection system of steel pipe piles of a wharf in Yangshan port has been used for more than ten years. The sacrificial anode protection effect is evaluated and analyzed by measuring the protection potentials, detecting anti-corrosion effect of the sacrificial anode protection system, and calculating the survival service life of the anodes. The results show that steel pipe piles in Yangshan port phase I project have been protected effectively in past ten years, and the cathodic protection system is running well. The remaining sacrificial anode life could not meet design life requirements because of serious scouring due to rush water and large sediment concentration.

关 键 词：钢管桩 牺牲阳极 阴极保护 剩余寿命 

分 类 号：TG174[金属学及工艺—金属表面处理]