天津LNG接收站码头钢桩长效腐蚀防护技术对比研究

Comparative Study on Long-term Corrosion Protection Technologies for Steel Piles at Tianjin LNG Receiving Terminal

为解决码头钢桩防腐问题,针对国内同类场站进行腐蚀调研,并对钢桩长效腐蚀防护技术进行优选。调研和试验结果表明,复层矿脂包覆技术(PTC)的防护效果优于其他2类腐蚀防护技术,是码头钢桩浪花飞溅区腐蚀防护的最佳解决方案。天津南港LNG接收站打破国内码头防腐设计的传统,在设计建造初期就采用PTC技术进行防腐保护,在国内尚属首例。相关调研和试验结果可为国内码头钢桩防腐设计提供参考。

In order to solve the corrosion problem of wharf steel piles,the work aims to conduct corrosion investigation on Chinese similar receiving terminals and optimize the long-term corrosion protection technology of steel piles.According to the research and experimental results,the protective effect of petrolatum tape and covering system(PTC) was better than that of the other two anticorrosion technologies.PTC was the best solution for corrosion protection of wharf steel pile in splashing zone.Tianjin Nangang LNG receiving terminal breaks the tradition of corrosion protection design at Chinese wharfs and it is the first case in China that PTC technology is used for corrosion protection in the initial stage of design and construction.The relevant investigation and test results can provide reference for the corrosion protection design of wharf steel piles in China.