Disaster-Accident Chain Deduction and Emergency Prevention and Control Measures of Crossing Gas Pipelines Under Extreme Disaster Scenarios

Yanhong Chen; Yuqi Zhang; Chuanhong Huang; Xin Zhang

doi:10.47297/taposatWSP2633-456927.20260708

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Disaster-Accident Chain Deduction and Emergency Prevention and Control Measures of Crossing Gas Pipelines Under Extreme Disaster Scenarios

7卷第8期

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Disaster-Accident Chain Deduction and Emergency Prevention and Control Measures of Crossing Gas Pipelines Under Extreme Disaster Scenarios
Disaster-Accident Chain Deduction and Emergency Prevention and Control Measures of Crossing Gas Pipelines Under Extreme Disaster Scenarios
Chongqing University of Science and Technology,Chongqing, Chongqing, 401331, China
2026年7卷第8期页码：136-141
纸质出版：2026-08-30
DOI：10.47297/taposatWSP2633-456927.20260708
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Yanhong Chen, Yuqi Zhang, Chuanhong Huang & Xin Zhang. (2026). Disaster-Accident Chain Deduction and Emergency Prevention and Control Measures of Crossing Gas Pipelines Under Extreme Disaster Scenarios. 科技理论与实践（英文版）, 7(8), 136-141.

Chen Yanhong,Zhang Yuqi,Huang Chuanhong,et al.Disaster-Accident Chain Deduction and Emergency Prevention and Control Measures of Crossing Gas Pipelines Under Extreme Disaster Scenarios[J].Theory and Practice of Science and Technology,2026,07(08):136-141.
Yanhong Chen, Yuqi Zhang, Chuanhong Huang & Xin Zhang. (2026). Disaster-Accident Chain Deduction and Emergency Prevention and Control Measures of Crossing Gas Pipelines Under Extreme Disaster Scenarios. 科技理论与实践（英文版）, 7(8), 136-141. DOI： 10.47297/taposatWSP2633-456927.20260708.

Chen Yanhong,Zhang Yuqi,Huang Chuanhong,et al.Disaster-Accident Chain Deduction and Emergency Prevention and Control Measures of Crossing Gas Pipelines Under Extreme Disaster Scenarios[J].Theory and Practice of Science and Technology,2026,07(08):136-141. DOI： 10.47297/taposatWSP2633-456927.20260708.

摘要

Abstract

To reveal the cascading evolution mechanism of multi-hazard coupling accidents of mountain crossing gas pipelines under extreme disaster scenarios

this study takes the Nanguang River suspension-bridge crossing pipeline of the Ning-Shuang pipeline as the research object. Based on field investigation

multi-source accident data statistics

Event Tree Analysis (ETA) and Fault Tree Analysis (FTA)

a complete disaster-accident chain framework covering hazard-causing factors

intermediate evolutionary events and terminal consequence events is constructed. A weighted directed complex network model is established via multi-source data fusion fuzzy mathematics

and Gephi software is used to calculate multiple topological indicators for core risk node identification and vulnerable propagation path screening. The results show that support system failure

pipeline overstress and natural gas leakage are the core hub nodes that dominate the disaster chain evolution. The flood-induced disaster chain possesses the highest conventional operation risk

while the earthquake-induced disaster chain has the fastest propagation efficiency under extreme conditions. Targeting the key risk links

a three-level full-cycle emergency prevention and control system integrating pre-disaster early warning

in-process chain blocking and post-disaster restoration optimization is proposed. The research findings can provide theoretical references and engineering guidance for extreme disaster risk management of similar overhead crossing gas pipelines in mountainous areas.

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Keywords

references

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