Citation

Chen S, Liu W, Shao B, Xi J, Wang J. China Saf. Sci. J. 2022; 32(11): 90-96.

Copyright

(Copyright © 2022, China Occupational Safety and Health Association, Publisher Gai Xue bao)

DOI

10.16265/j.cnki.issn1003-3033.2022.11.2227

PMID

unavailable

Abstract

In order to reveal the temporal and spatial distribution characteristics of safety hazards, the data of 32 060 safety hazards during the construction of a large-scale hydropower project were mined. The phrase extraction technology based on the TF-CRF algorithm was used to establish a word cloud map of the types and parts of hazards, reflecting the word frequency distribution feature of key information about safety hazards. The Sankey diagram was produced to represent the information flow features among characteristics, locations and types of safety hazards. The sequential network of near-misses was constructed to analyze the time characteristics and dynamic relationships of different types of safety hazards. The results show that safety hazards such as the construction of the bent frame, steel formwork trolley, and bent frame erection frequently occur in underground caverns, caves, platforms and other parts, which are the focus of safety management. From the Sankey diagram, the information flow related to the steel formwork trolley and the bent frame is the densest, and the safety hazards related to them are the most. From the network diagram, Electric shock safety hazards occur most frequently in November and December, and the number of occurrences is the least in January and February. Integrating three types of safety hazards into the same network for verification shows that this method is feasible and also finds the highest number of safety hazards related to civilized construction. These should be attached with great importance by the managers. © 2022 China Safety Science Journal. All rights reserved.

Language: zh