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Safety evaluation of metro station construction in confined space under 500 kV high-voltage lines
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Yanjun LI1, Huahua XIA2, Hongshuai YAN1, Kewei LIU3, **, Ruitao SONG3
China Safety Science Journal | 2025, 35(4) : 204 - 210
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China Safety Science Journal | 2025, 35(4): 204-210
• Public safety •
Safety evaluation of metro station construction in confined space under 500 kV high-voltage lines
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Yanjun LI1, Huahua XIA2, Hongshuai YAN1, Kewei LIU3, **, Ruitao SONG3
Affiliations
  • 1 China Communications Road and Bridge Construction Co.，Ltd.，Beijing 101100，China
  • 2 Rail Transit Branch，China Communications Construction Co.，Ltd.，Beijing 101100，China
  • 3 School of Resources and Security Engineering，Central South University，Changsha Hunan 410083，China
Published: 2025-04-28 doi: 10.16265/j.cnki.issn1003-3033.2025.04.1008
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In order to effectively identify construction risks and prevent safety accidents，this study investigated the safety evaluation method for metro station construction in confined space under 500 kV high-voltage lines. First，a safety evaluation index system for metro station construction under high-voltage lines was established by integrating AHP and 3MET(Management，Man，Machine，Environment，Technology) method. Then，the weights of indicators were calculated using the IOWA operator，and the cloud model was applied to determine evaluation standard clouds and cloud characteristic values，thereby deriving the comprehensive safety evaluation grade. Finally，the proposed method was validated through a case of the University Town Central Road Station on Chongqing Metro Line 15，with corresponding mitigation measures proposed for high-risk indicators. The results demonstrate that the evaluation model accurately identifies high-risk sources in metro station construction under high-voltage lines，with the safety evaluation grade classified as lower risk，consistent with on-site conditions. Key considerations for safety measures include the electromagnetic field effects of high-voltage lines，risk monitoring and protection，mechanical equipment selection and its safety functions. The application of multi-dimensional layered protective structures could effectively mitigate construction risks under high-voltage environments.

500 kV high-voltage lines  /  confined space  /  metro station  /  construction safety evaluation  /  cloud model  /  induced ordered weighted average (IOWA) operator  /  analytic hierarchy process (AHP)
Yanjun LI, Huahua XIA, Hongshuai YAN, Kewei LIU, Ruitao SONG. Safety evaluation of metro station construction in confined space under 500 kV high-voltage lines[J]. China Safety Science Journal, 2025 , 35 (4) : 204 -210 . DOI: 10.16265/j.cnki.issn1003-3033.2025.04.1008
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Year 2025 volume 35 Issue 4
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Article Info
doi: 10.16265/j.cnki.issn1003-3033.2025.04.1008
  • Receive Date：2024-12-14
  • Online Date：2025-07-05
  • Published：2025-04-28
Article Data
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History
  • Received：2024-12-14
  • Revised：2025-02-18
Funding
Affiliations
    1 China Communications Road and Bridge Construction Co.，Ltd.，Beijing 101100，China
    2 Rail Transit Branch，China Communications Construction Co.，Ltd.，Beijing 101100，China
    3 School of Resources and Security Engineering，Central South University，Changsha Hunan 410083，China
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