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Unraveling mechanisms and failures of stray current corrosion in urban Subway adjacent pipeline networks through statistical insights and 3D simulation.
Hu, Qunfang; Zhang, Zongyang; Zhang, Yu; Wang, Fei; Su, Zhan; Fang, Hongyuan.
Afiliação
  • Hu Q; Urban Mobility Institute, Tongji University, Shanghai 200092, China; Shanghai Institute of Disaster Prevention and Relief, Tongji University, Shanghai 200092, China; Key Laboratory of Urban Safety Risk Monitoring and Early Warning of the Ministry of Emergency Management, Shanghai 200092, China.
  • Zhang Z; Urban Mobility Institute, Tongji University, Shanghai 200092, China. Electronic address: 2110795@tongji.edu.cn.
  • Zhang Y; Urban Mobility Institute, Tongji University, Shanghai 200092, China.
  • Wang F; Shanghai Institute of Disaster Prevention and Relief, Tongji University, Shanghai 200092, China; Key Laboratory of Urban Safety Risk Monitoring and Early Warning of the Ministry of Emergency Management, Shanghai 200092, China.
  • Su Z; Shanghai Institute of Disaster Prevention and Relief, Tongji University, Shanghai 200092, China; Key Laboratory of Urban Safety Risk Monitoring and Early Warning of the Ministry of Emergency Management, Shanghai 200092, China.
  • Fang H; Yellow River Laboratory, Zhengzhou University, Zhengzhou, Henan 450001, China.
Sci Total Environ ; 927: 172407, 2024 Jun 01.
Article em En | MEDLINE | ID: mdl-38608910
ABSTRACT
The escalating expansion of urban subway systems in recent years has accentuated the issue of stray current corrosion within pipeline networks, emerging as a critical concern for urban safety. This paper delves into the intricate interplay between these phenomena, employing data-driven statistical analyses to elucidate the coupling characteristics between subway lines and the occurrence of failures in adjacent buried pipelines. An advanced three-dimensional finite element model was developed for stray current corrosion in pipelines, seamlessly integrating empirical data and physics-based modeling, which is to uncover the spatial nuances and multifaceted impacts on subway pipeline corrosion from both macro and micro perspectives under varying influencing factors. The study unveils a pronounced geographical and functional affinity between urban subway networks and metallic pipeline networks. The coupling attributes between subway systems and pipelines, such as distance, angle, and pipeline-specific characteristics including material and age, assume pivotal roles. The results further emphasize the hierarchical order of influence, with stray current intensity holding the greatest sway, followed by the distance between subway and pipelines, the angle between them, and soil resistivity. This paper offers a comprehensive investigation of the interrelationships and influential factors between subway systems and adjacent pipelines. It contributes to the mitigation and management of stray current corrosion in pipelines induced by nearby rail transit, thereby enhancing the resilience of both subway and pipeline networks within urban areas.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Revista: Sci Total Environ Ano de publicação: 2024 Tipo de documento: Article País de afiliação: China

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Revista: Sci Total Environ Ano de publicação: 2024 Tipo de documento: Article País de afiliação: China
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