Dynamic Stray Current Evaluations on Cut-and-Cover Sections of DC Metro Systems
Dynamic Stray Current Evaluations on Cut-and-Cover Sections of DC Metro Systems
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DOI：
10.1109/tvt.2014.2304522
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发表时间：
2014-02
影响因子：
6.8
通讯作者：
C. Charalambous;P. Aylott
中科院分区：
文献类型：
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作者：
C. Charalambous;P. Aylott
地下直流地铁系统的隧道施工主要采用钻孔隧道法和明挖掩护法。因此，杂散电流评估和缓解措施应根据所使用的隧道施工方法进行调整。本文提出了一种用于评估直流地铁明挖覆盖区段动态杂散电流图像的拓扑精确模型。动态杂散电流评估可以提供系统支持和第三方基础设施中腐蚀问题的程度的指示。在本文中，动态评价是基于各种理想和现实的列车运行情景相结合的。
The tunneling construction in underground DC Metro Systems is mainly based on the bored tunnel method and the cut-and-cover method. Therefore, the stray current assessments and mitigation actions should be tailored according to which method of tunnel construction is used. This paper presents a topologically accurate model for assessing the dynamic stray current picture in cut-and-cover sections of DC metro systems. The dynamic stray current evaluation can provide an indication to the extent of the corrosion problem in the supporting and third-party infrastructures of the system. In this paper, the dynamic evaluations are based on a combination of various ideal and realistic train operation scenarios.