Citation

Zhang X, Liang F, Xu S. China Saf. Sci. J. 2022; 32(12): 125-132.

Copyright

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

DOI

10.16265/j.cnki.issn1003-3033.2022.12.0586

PMID

unavailable

Abstract

In order to prevent the occurrence of urban gas accidents, unsafe acts of 90 urban gas fatal accidents were firstly analyzed through the code of unsafe act factors of 24Model, and classification and code for hazardous and harmful factors in production process. Then, based on the modified probability of unsafe acts and accident risk index, the behavioral risk assessment model of urban gas accidents was constructed and optimized. Finally, the Monte Carlo method was used to study behavioral risk consequence values of four types of parties relating to urban gas accident, and sensitivity analysis was used to obtain the influence degree of unsafe acts of each type of related party on behavioral risk. The results shows that the behavior risk of gas operators is the highest, followed by gas users and gas engineering participants. The risk of other third party units is the lowest. In addition, three kinds of unsafe acts have great impacts on the risk of urban gas accident behavior, including "insufficient implementation of accident hidden danger investigation and rectification", "non-compliant use of gas appliances or facilities "and "illegal implementation of occupational safety and health management or technical services". © 2022 China Safety Science Journal. All rights reserved.

Language: zh