China Safety Science Journal ›› 2021, Vol. 31 ›› Issue (8): 75-82.doi: 10.16265/j.cnki.issn1003-3033.2021.08.011

• Safety engineering technology • Previous Articles     Next Articles

Mining association rules of near-misses of hydropower projects construction

CHEN Shu1,2, XI Junbo2, WANG Jianping2, CHEN Yun1   

  1. 1 Hubei Key Laboratory of Construction and Management in Hydropower Engineering, China Three Gorges University, Yichang Hubei 443002, China;
    2 College of Economic and Management, China Three Gorges University, Yichang Hubei 443002, China
  • Received:2021-05-06 Revised:2021-07-03 Online:2021-08-28 Published:2022-02-28

Abstract: To efficiently mine the large amount of text data accumulated in the near-misses investigation of hydropower projects, phrase extraction technology based on mutual information and left-right information entropy was adopted to extract structured key phrases from unstructured near-misses data. Sankey diagram was used to describe information flow among characteristics, locations and types of potential hazards. Combined with phrase extraction technology, Apriori association algorithm was optimized, association rules of hidden danger locations and types were mined, association rules network diagram was drawn, and rules were analyzed with Sankey diagram. 13 820 hidden danger data cases of a hydropower station was verified. The results show that near-misses data switch box guardrails is key of hidden perils, such as easy for shelving electric welding machine switch box cable clutter object at gate, such as electric shock stick slope, falling of correlation degree is higher, study provides hidden perils in hydropower engineering and management.

Key words: hydroelectric engineering construction, near-misses, association rules, text mining, Sankey diagram, Apriori algorithm

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