海洋构筑物在海洋环境中的腐蚀是相当严重的。从腐蚀的角度，一般都把钢铁设施在海洋环境中的腐蚀分为５个区带［１～５］。即海洋大气区、浪花飞溅区、海水潮差区、海水全浸区、海底泥土区、钢铁设施在各区带的腐蚀情况也不相同。根据各区带腐蚀的轻重情况，分别采取适合于各 The corrosion of marine structures in the marine environment is quite serious. From the perspective of corrosion, the corrosion of steel facilities in the marine environment is generally divided into five zones [1 ~ 5]. In other words, the corrosion of sea atmosphere, spray splash zone, tidal range of seawater, seawater immersion zone, seabed soil zone and steel facilities in different zones are not the same. According to the severity of the various zones of corrosion, respectively, to adapt to each