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Estimation of Equivalent and Depth of Underwater Explosion Using Bubble Pulsation Periods
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Yan WANG1, 2, Zhe-han LIU2, Jian LI2, Shi-ya ZOU1, Xiao-ming WANG2, Wei TANG2, De NAN2
Blasting | 2023, 40(3) : 217 - 224
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Blasting | 2023, 40(3): 217-224
• BLASTING SAFETY •
Estimation of Equivalent and Depth of Underwater Explosion Using Bubble Pulsation Periods
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Yan WANG1, 2, Zhe-han LIU2, Jian LI2, Shi-ya ZOU1, Xiao-ming WANG2, Wei TANG2, De NAN2
Affiliations
  • 1.State Key Laboratory of NBC Protection for Civilian, Beijing 102205, China
  • 2.CTBT Beijing National Data Centre and Beijing Radionuclide Laboratory, Beijing 100085, China
Published: 2023-09-01 doi: 10.3963/j.issn.1001-487X.2023.03.030
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The estimation of equivalent and depth of underwater explosions is an important task of the hydroacoustic monitoring in the International Monitoring System (IMS) of the Comprehensive Nuclear-Test-Ban Treaty (CTBT). In order to effectively estimate the equivalent and depth of underwater explosion in near and far-fields, the relationship between the ratio of the first and second periods of the bubble pulsation and the bubble radius and depth was fully used based on the semi empirical formula of bubble pulsation period. The analysis results of near-field underwater explosion show that the average estimated equivalent and depth are about 118 g and 7.96 m, 76 g and 21.4 m, 1.23 kg and 44 m for different actual TNT equivalent values and blasting depths of 100 g and 7 m, 100 g and 25 m, 1 kg and 50 m, respectively. These results show that the depth estimation is more accurate than the equivalent estimation. Furthermore, the proposed method failed for a small explosion equivalent of 100 g and a depth of 50 m, which indicates that the method is limited in explosion depth. Finally, this method was used to analyze the far-field underwater explosions recorded by IMS hydroacoustic stations, and the equivalent and depth estimation results were consistent with the references, which indicated that this method is also suitable for the far-field explosion estimation.

IMS hydrophones station  /  underwater explosion  /  bubble pulsation period  /  equivalent estimation
Yan WANG, Zhe-han LIU, Jian LI, Shi-ya ZOU, Xiao-ming WANG, Wei TANG, De NAN. Estimation of Equivalent and Depth of Underwater Explosion Using Bubble Pulsation Periods[J]. Blasting, 2023 , 40 (3) : 217 -224 . DOI: 10.3963/j.issn.1001-487X.2023.03.030
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Article Info
doi: 10.3963/j.issn.1001-487X.2023.03.030
  • Receive Date：2022-04-28
  • Online Date：2026-03-20
  • Published：2023-09-01
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  • Received：2022-04-28
Affiliations
    1.State Key Laboratory of NBC Protection for Civilian, Beijing 102205, China
    2.CTBT Beijing National Data Centre and Beijing Radionuclide Laboratory, Beijing 100085, China

Corresponding:

ZOU Shi-ya (1963-), male, researcher, mainly engaged in research on nuclear explosion phenomena and effects, (E-mail) .
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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