摘要
海洋湿热环境下高桩码头桩基的腐蚀破坏是影响结构安全的重要因素之一,是提升高桩码头使用寿命的瓶颈。基于室内海洋湿热环境模拟系统以及法拉第电磁感应定律,采用外接直流电源的方法进行人工加速腐蚀;运用半电池电势理论,依据腐蚀越严重、电势值越高的规律对CFRP-钢管混凝土桩基的腐蚀特性进行定量、定性研究。结果表明,桩基腐蚀越严重,电势值越高;粘贴两层CFRP比粘贴一层CFRP的防腐效果更优。
The corrosion damage of pile foundation is one important factor affecting the safety of structures under the humid and hot ocean environment,and it is the bottleneck of increasing the service life of piled wharves.Based on the simulation system of indoor marine humid and thermal environment and Faraday s law of electromagnetic induction,we apply the method of external DC power supply to carry out the artificialy accelerated corrosion behavior,study the corrosion characteristics of CFRP-concrete filled steel tube pile foundation based on the law of more serious corrosion and higher potential value by using the theory of semi-battery electric potential.The results show that the more severe the corrosion is,the higher the potential value is.Two layers of CFRP are more effective than one layer of CFRP.
作者
董洪静
谭德银
刘志军
庄宁
DONG Hong-jing;TAN De-yin;LIU Zhi-jun;ZHUANG Ning(CCCC Fourth Harbor Engineering Institute Co.,Ltd.,Guangzhou 510230,China;CCCC Key Lab of Environmental Protection&Safety in Foundation Engineering of Transportation,Guangzhou 510230,China;Southern Marine Science and Engineering Guangdong Laboratory(Zhuhai),Zhuhai 519000,China;College of Harbor Coastal and Offshore Engineering,Hohai University,Nanjing 210098,China)
出处
《水运工程》
北大核心
2021年第6期26-32,49,共8页
Port & Waterway Engineering
