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首页> 外文会议>12th International Harbour Congress Sep 12-16, 1999 Antwerpen, Belgium >THE EXPERIENCE OF THE PORT OF LE HAVRE IN CATHODIC PROTECTION AND THE REPAIR OF METAL STRUCTURES
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THE EXPERIENCE OF THE PORT OF LE HAVRE IN CATHODIC PROTECTION AND THE REPAIR OF METAL STRUCTURES

机译：勒阿弗尔港的阴极保护和金属结构修复的经验

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摘要

Part of the infrastructure work of the Port of Le Havre, notably the quays, the quayside protections and the dolphins are made of metal structure (sheet piles, tubes). This kind of structure has been mainly used from the years 1970's and was originally considered as provisional or short-life. As in many other ports, very few precautions have been taken to minimize the corrosion of these structures, contrary to bridges and lock gates for example. Twenty or thirty years after construction, most metal structures are still in operation for container berths, ro-ro trade and bulk terminals. Most structures have suffered significant corrosion which, in certain cases, amount or even goes beyond the safety measurements on metal thickness. The article describes the testing sessions carried out, the problems of accuracy of the measurements and the results of the measurements. The article states the standard reasons for corrosion in sea water or brackish water, and mentions, as one of the causes, the action of industrial waste and discharge into the port. For all new structures, the Port of Le Havre has implemented protections through paint coating and/or cathodic protection which is systematically carried out by sacrificial anodes.
机译：勒阿弗尔港的基础设施工作的一部分，尤其是码头，码头保护区和海豚均由金属结构（板桩，管子）制成。这种结构主要是从1970年代开始使用的，最初被认为是临时的或短寿命的。与许多其他港口一样，与桥和锁闸相反，很少采取预防措施来使这些结构的腐蚀最小化。建造二十或三十年后，大多数金属结构仍在为集装箱泊位，滚装贸易和散装码头服务。大多数结构遭受了严重的腐蚀，在某些情况下，腐蚀的数量甚至超过了金属厚度的安全性测量值。本文介绍了执行的测试会话，测量准确性和测量结果的问题。该文章陈述了海水或微咸水中腐蚀的标准原因，并提到了工业废物和排入港口的行为，这是其原因之一。对于所有新结构，勒阿弗尔港已通过油漆涂层和/或阴极保护实施了保护，这是由牺牲阳极系统地进行的。

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