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XU Shi, DONG Ruyi, WANG Hui, WANG Haitao, LUO Weihua, WANG Tingyong. Application of Finite Element Method in Cathodic Protection Design for Immersed Tunnel Steel Structure[J]. Corrosion & Protection, 2023, 44(6): 90-95,102. DOI: 10.11973/fsyfh-202306014
Citation: XU Shi, DONG Ruyi, WANG Hui, WANG Haitao, LUO Weihua, WANG Tingyong. Application of Finite Element Method in Cathodic Protection Design for Immersed Tunnel Steel Structure[J]. Corrosion & Protection, 2023, 44(6): 90-95,102. DOI: 10.11973/fsyfh-202306014

Application of Finite Element Method in Cathodic Protection Design for Immersed Tunnel Steel Structure

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  • Received Date: October 13, 2022
  • In order to solve the problem that the cathodic protection potential on the surface of immersed tunnel steel structure was difficult to calculate and test, the cathodic protection design of a project was optimized by numerical simulation technology. The accuracy of the simulation results was indirectly verified by the scale model. The results showed that for the immersed tunnel, the under-protected area usually appears at the bottom of the immersed tube because the sacrificial anode cannot be arranged at the bottom of the immersed tube steel shell. If the anode was evenly arranged on other surfaces except the bottom surface of the steel shell, the potential difference between the top or side of immersed tube steel shell and the bottom surface was 70-100 mV, and the bottom surface of steel shell was in an under-protected state. By increasing the number of sacrificial anodes on the side of immersed tube steel shell, the negative shift of the potential at the bottom of immersed tube was larger, and the protection effect of sacrificial anode was better.
  • [1]
    宋神友,聂建国,徐国平,等.双钢板-混凝土组合结构在沉管隧道中的发展与应用[J].土木工程学报,2019,52(4):109-120.
    [2]
    王艳宁,熊刚.沉管隧道技术的应用与现状分析[J].现代隧道技术,2007,44(4):1-4.
    [3]
    WU X D,XI J J,LIU H,et al.Intelligent casting technology of self-compacting concrete for steel-shells of Shenzhen-Zhongshan link immersed tunnel tubes[J].Tunnel Construction,2022,42(2):328-335.
    [4]
    傅琼阁.沉管隧道的发展与展望[J].中国港湾建设,2004,24(5):53-58.
    [5]
    姜伟,袁勇.沉管结构预制阶段裂缝控制参数影响分析[J].中国公路学报,2020,33(2):114-124.
    [6]
    赵永韬,宋神友,孙仁兴,等.抛石环境中铝合金阳极性能评价及其对海底隧道钢壳保护效果评估[J].装备环境工程,2021,18(9):78-85.
    [7]
    庄大伟,杜艳霞,陈涛涛,等.区域阴极保护数值模拟边界条件反演计算方法研究及应用[J].中国腐蚀与防护学报,2021,41(3):346-352.
    [8]
    李民强,郑震生,董亮,等.海洋平台导管架外加电流阴极保护设计数值模拟[J].表面技术,2016,45(7):109-114.
    [9]
    赵会军,杜鹏宇,董亮,等.阴极保护检查片接地电阻数值模拟与实验研究[J].表面技术,2020,49(1):262-268.
    [10]
    查鑫堂,张建文,陈胜利,等.杂散电流干扰和阴极保护作用下碳钢腐蚀规律研究[J].表面技术,2015,44(12):12-18,26,8.
    [11]
    赵林,王骑,宋神友,等.深中通道伶仃洋大桥(主跨1666 m)抗风性能研究[J].中国公路学报,2019,32(10):57-66.
    [12]
    LIU J,DENG B,HUANG Q F.Design and manufacturing techniques for steel-shell structure of Shenzhen-Zhongshan link's immersed tunnel[J].Tunnel Construction,2021,41(8):1367-1374.
    [13]
    金文良,宋神友,陈伟乐,等.深中通道钢壳混凝土沉管隧道总体设计综述[J].中国港湾建设,2021,41(3):35-40.
    [14]
    KASPER R G,APRIL M G.Electrogalvanic finite element analysis of partially protected marine structures[J].Corrosion,1983,39(5):181-188.
    [15]
    FU J W,CHAN S K.A finite element method for modeling localized corrosion cells[J].Corrosion,1984,40(10):540-544.
    [16]
    李子运,王贵,罗思维,等.热带海洋大气环境中EH36船板钢早期腐蚀行为研究[J].中国腐蚀与防护学报,2020,40(5):463-468.

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