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Research on causal factors of gas leakage accidents based on LDA-DEMATEL-ISM
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Wentao Chen1, 2, Xing Gao1, Chao Sun2, Wenhe Wang3, Zhiquan Yang1, Chaolin Liu2
Fire Science and Technology | 2026, 45(5) : 1 - 8
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Fire Science and Technology | 2026, 45(5): 1-8
• Fire theory study •
Research on causal factors of gas leakage accidents based on LDA-DEMATEL-ISM
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Wentao Chen1, 2, Xing Gao1, Chao Sun2, Wenhe Wang3, Zhiquan Yang1, Chaolin Liu2
Affiliations
  • 1School of Public Safety and Emergency Management, Kunming University of Science and Technology, Kunming Yunnan 650031, China
  • 2Information Research Institute of the Ministry of Emergency Management, Beijing 100029, China
  • 3School of Safety Science and Engineering, Chongqing University of Science and Technology, Chongqing 401331, China
Published: 2026-05-15 doi: 10.20168/j.1009-0029.2026.05.0001.08
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To explore the intrinsic relationships among the contributing factors of gas leakage accidents and identify the key and root causes, this study collected 148 gas leakage accident investigation reports as textual data. The Latent Dirichlet Allocation (LDA) model was applied for topic mining, and 18 accident causative factors were identified and summarized through literature analysis. An integrated approach combining the Decision-Making Trial and Evaluation Laboratory (DEMATEL) and Interpretive Structural Modeling (ISM) was adopted to plot cause-and-result diagrams of the factors and construct a multi-level hierarchical structure model. This allowed for determining the causal attributes of each factor and their roles within the system, as well as clarifying the hierarchical relationships and transmission paths among the factors. The results show that the causal factors of gas leakage accidents exhibit a five-level hierarchical structure. Among them, inadequate safety supervision and insufficient implementation of safety education and training are identified as root causes, while violations of operating procedures and failures of auxiliary equipment and facilities are the most direct surface-level causes. A total of 11 key causal chains from root causes to surface-level factors were identified, revealing the multi-level transmission paths among the causes of gas leakage accidents and providing clear directions for accident prevention and control.

gas leakage accident  /  causative factors  /  LDA model  /  DEMATEL-ISM method  /  risk analysis
陈文涛, 高幸, 孙超, 王文和, 杨志全, 刘超林. 基于LDA-DEMATEL-ISM的燃气泄漏事故致因因素研究. 消防科学与技术, 2026 , 45 (5) : 1 -8 . DOI: 10.20168/j.1009-0029.2026.05.0001.08
Wentao Chen, Xing Gao, Chao Sun, Wenhe Wang, Zhiquan Yang, Chaolin Liu. Research on causal factors of gas leakage accidents based on LDA-DEMATEL-ISM[J]. Fire Science and Technology, 2026 , 45 (5) : 1 -8 . DOI: 10.20168/j.1009-0029.2026.05.0001.08
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Year 2026 volume 45 Issue 5
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Article Info
doi: 10.20168/j.1009-0029.2026.05.0001.08
  • Receive Date：2025-04-25
  • Online Date：2026-10-22
  • Published：2026-05-15
Article Data
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History
  • Received：2025-04-25
  • Revised：2025-11-11
Affiliations
    1School of Public Safety and Emergency Management, Kunming University of Science and Technology, Kunming Yunnan 650031, China
    2Information Research Institute of the Ministry of Emergency Management, Beijing 100029, China
    3School of Safety Science and Engineering, Chongqing University of Science and Technology, Chongqing 401331, China
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表12种不同金属材料的力学参数
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Number of
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Number of
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小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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