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Explosion of Explosives in Subsurface Magazines and its numerical analysis
Author(s) -
Adachi Tetsuhiko,
Munemasa Kunihiko,
Hasue Kazuo,
Nakahara Shohji
Publication year - 1991
Publication title -
propellants, explosives, pyrotechnics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.56
H-Index - 65
eISSN - 1521-4087
pISSN - 0721-3115
DOI - 10.1002/prep.19910160102
Subject(s) - overpressure , explosive material , schlieren photography , shock wave , shock (circulatory) , rock blasting , blast wave , gas explosion , geology , geotechnical engineering , engineering , mechanics , forensic engineering , aerospace engineering , physics , history , medicine , flow (mathematics) , archaeology , flow visualization , thermodynamics
The subsurface magazine is a new type of magazine in Japan, which is defined as a magazine constructed underground and equipped with elevators of other transportation means. and is different from the usual tunnel type underground magazine. Explosions of explosives in model subsurface magazines were carried out. and explosion gases and shock waves blown out from their entrances were observed by schlieren photography. The blast overpressures were also measured by piezoelectric transducers. these external effects by explosion of explosives in the subsurface magazines were found to be less than those in the underground magazines. The above phenomena were simulated by numerical analysis using PISCES 2DELK code. Caluculated maximum overpressure and velocity of gases and shock waves were in fair agreement with their experimental values.