With the aging infrastructure, there is a need to maintain and extend the service life of steel structures in general and steel piles in particular. Steel piles support not only vertical loads but also dynamic horizontal loads in onshore and offshore applications. In order to select the appropriate methods to repair corroded steel piles used in onshore and offshore application, corrosion mechanisms were investigated with the rate of corrosion in various environments. The corrosion rate of steel in soil, water and soil-water interface varied from 2 to 500 um/year. Based on literature review and analyses, the repair methods can be broadly characterized as protective coating, electro-chemical methods, wrapping and encasement and partial replacement of steel. Also, methods to evaluate the repair materials and the repair configuration have been documented.
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机译:随着老化基础设施,特别需要维持和延长一般和钢桩的钢结构的使用寿命。钢桩不仅支持垂直载荷,还支持陆上和海上应用中的动态载荷。为了选择修复在陆上和海上应用中使用的腐蚀钢桩的适当方法,研究了各种环境中腐蚀速率的腐蚀机制。土壤,水土和土壤水域界面的腐蚀速率从2到500 um /年变化。基于文献综述和分析,修复方法可广泛地表征为防护涂料,电化学方法,包装,包装和钢部分替代。此外,记录了评估修复材料和修复配置的方法。
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