摘要:随着我国地铁铺设里程的不断增加,钢筋混凝土、埋地管道等基础设施被广泛应用于地铁系统。地铁杂散电流泄漏会对基础设施造成严重破坏,混凝土钢筋和埋地金属的腐蚀问题值得城市运维部门的高度关注。分别从杂散电流作用下的金属腐蚀,杂散电流建模分析等方面,系统介绍了国内外对杂散电流金属腐蚀研究的现状和进展,并对杂散电流建模方案进行了比较与展望。
关键词:杂散电流; 埋地管道; 钢筋混凝土; 腐蚀; 分布模型;
A Comprehensive Survey of Subway Stray Current Corrosion Assessment and Modeling Analysis
Cai Zhichao Zhang Xianwei
School of Electrical and Automation Engineering,East China Jiaotong University
Abstract:With the continuous increase of subway lines in China,infrastructures such as reinforced concrete and buried pipelines are widely used in subway systems. The leakage of stray current in the subway will cause serious damage to the infrastructures,and the corrosion of concrete reinforcement and buried metals deserves high attention of the urban operation and maintenance departments. This paper introduces the current status and progress of researches on stray current metal corrosion at home and abroad from the aspects of metal corrosion and stray current modeling under stray current. Finally,the system comparison and prospect of the stray current modeling schemes are discussed.