China Safety Science Journal ›› 2023, Vol. 33 ›› Issue (7): 190-195.doi: 10.16265/j.cnki.issn1003-3033.2023.07.1644

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Causes and correlation analysis of urban gas accidents based on text mining

ZHENG Binbin1(), FENG Tingting1, WANG Jiahe1, XIAO Yuan2, SUN Wenhao1   

  1. 1 School of Management Science and Engineering, Shandong Technology and Business University, Yantai Shandong 264005, China
    2 Yantai Emergency Rescue Support and Earthquake Disaster Reduction Service Center,Yantai Shandong 264003, China
  • Received:2023-02-22 Revised:2023-05-14 Online:2023-07-28 Published:2024-01-28

Abstract:

In order to effectively prevent the occurrence of urban gas accidents, the causes of accidents affecting urban gas safety and their relevance were systematically analyzed by using the research method of text mining and complex network theory. Firstly, text mining technology was used to extract the causative factors of urban gas accidents from 1 256 gas accident cases from 2017 to 2021, and the Apriori algorithm was used to mine the association rules of urban gas accident causes, and 49 strong association rules were obtained. Then the accident cause network diagram was constructed based on the co-occurrence matrix, and the key causes and accident cause sets of gas accidents were identified through the analysis of degree centrality, compact centrality and intermediary centrality. The research results show that pipeline damage, valve opening, equipment aging, improper operation and use, hose damage and shedding are the key causes of urban gas accidents, and gas leakage is a common type of gas accident. It is mainly related to pipeline damage, valve failure and so on.

Key words: urban gas, accident cause, text mining, association rule, Apriori algorithm