Citation

Zhang G, Liu C, Zhang Z, Zhang X, Yuan D. China Saf. Sci. J. 2022; 32(10): 171-177.

Copyright

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

DOI

10.16265/j.cnki.issn1003-3033.2022.10.2033

PMID

unavailable

Abstract

In order to reduce the secondary disasters of surrounding buildings caused by extreme fire and explosion accidents in the city, taking the explosion accident of liquefied petroleum gas storage and transportation device in cities as an example, a simplified explosion model of liquefied petroleum gas storage and transportation device and a radiation ignition model of combustible materials in buildings were established, and an analysis method of fire spread behavior of surrounding buildings caused by urban extreme explosion accidents was put forward. The results show that the urban extreme explosion accident can cause the fire spreading behavior of surrounding buildings, and the thermal radiation generated by the explosion accident will first ignite the flammable materials at the openings of buildings. Subsequently, combustible materials will ignite other combustible materials in the building, and the fire will develop in the trend of t2 fire. When the whole building was over-fired, the fire continued to burn and remained stable. On the whole, the danger arrival time of each floor in the building is relatively close, and the temperature is the main factor affecting the danger arrival time. © 2022 Ｃｈｉｎａ Ｓａｆｅｔｙ Ｓｃｉｅｎｃｅ Ｊｏｕｒｎａｌ. All rights reserved.

Language: zh