A novel hazard warehouse and its safety separation distance

LIU Mingjun; LI Zhan; XIE Wei; YIN Qing; ZENG Dan; ZHANG Yadong; ZHOU Ting

doi:10.11883/bzycj-2022-0224

Volume 43 Issue 4

Apr. 2023

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Article Navigation > Explosion And Shock Waves > 2023 > 43(4): 045901

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LIU Mingjun, LI Zhan, XIE Wei, YIN Qing, ZENG Dan, ZHANG Yadong, ZHOU Ting. A novel hazard warehouse and its safety separation distance[J]. Explosion And Shock Waves, 2023, 43(4): 045901. doi: 10.11883/bzycj-2022-0224

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A novel hazard warehouse and its safety separation distance

doi: 10.11883/bzycj-2022-0224

LIU Mingjun^{1, 2
,},
LI Zhan¹,
XIE Wei^{3
,
,},
YIN Qing³,
ZENG Dan⁴,
ZHANG Yadong⁵,
ZHOU Ting³

1.
State Key Laboratory of Disaster Prevention & Mitigation of Explosion & Impact, Army Engineering University of PLA, Nanjing 210007, Jiangsu, China
2.
Unit 73211 of PLA, Nanjing 211800, Jiangsu, China
3.
Research Institute for National Defense Engineering of Academy of Military Science PLA, Beijing 100036, China
4.
China North Industries Group Corporation Limited, Beijing 100045, China
5.
Engineering Research Center of Safety and Protection of Explosion & Impact of Ministry of Education, Southeast University, Nanjing 211189, Jiangsu, China

Received Date: 2022-05-25
Rev Recd Date: 2022-08-22

Available Online: 2022-10-08

Publish Date: 2023-04-05

Abstract

Abstract

Safety separation distance is one of the key concerns in the engineering construction and the study of hazards warehouses. In order to reduce the safety separation distance, a novel type of hazards warehouse is proposed based on the current codes and structural patterns of existing hazards warehouses. The novel warehouse is mainly composed of a shallow-buried main body, a reinforced concrete (RC) distribution slab and a heaped-up earth cover (HEC). Considering the variations of distribution slab and the strength of the main body, three scaled models of the novel hazards warehouse were built and internal explosion tests were carried out. The overpressure time histories of shock waves generated in the explosion tests were recorded and the distribution of blast debris around the warehouse were counted. According to the testing data and damage criteria of personnel subjected to shock waves, the safety separation distance of the novel hazards warehouse is plotted. Moreover, the effects of the RC distribution slab and the main body strength on shock wave propagation and debris distribution are analyzed. The results show that the novel hazards warehouse can bring about directional venting during internal explosions and effectively restrain the shock waves propagation and debris flying. The safety separation distance of shock waves has significantly directionality. Compared with the ground explosion, the safety separation distance of the novel hazards warehouse can be reduced up to 77% on both sides and the rear. In the rear direction, the safety separation distance of the novel hazards warehouse is only 50% of that of the earth-covered hazards warehouse. As the key component of the novel hazards warehouse, the RC distribution slab can reduce the safety separation distance by 30% in the rear direction. Compared with the corrugated steel main body, the RC main body can reduce the safety separation distance up to 38% in the rear direction.
- hazards warehouse,
- safety separation distance,
- blast waves,
- blast debris,
- blast tests

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References(30)

References

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