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1.东南大学爆炸安全防护教育部工程研究中心,江苏 南京 211189
2.陆军工程大学防灾减灾国家重点实验室,江苏 南京210007
Published:15 October 2021
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岳承军,陈力,李展等.温岭“6‧13”液化石油气槽罐车爆炸事故灾害效应分析∗[J].防灾减灾工程学报,2021,41(05):928-935.
YUE Chengjun,CHEN Li,LI Zhan,et al.Power and Consequence Analysis of "6‧13" Explosion Accident of LPG Tank Truck in Wenling[J].Journal of Disaster Prevention and Mitigation Engineering,2021,41(05):928-935.
岳承军,陈力,李展等.温岭“6‧13”液化石油气槽罐车爆炸事故灾害效应分析∗[J].防灾减灾工程学报,2021,41(05):928-935. DOI: 10.13409/j.cnki.jdpme.20210419004.
YUE Chengjun,CHEN Li,LI Zhan,et al.Power and Consequence Analysis of "6‧13" Explosion Accident of LPG Tank Truck in Wenling[J].Journal of Disaster Prevention and Mitigation Engineering,2021,41(05):928-935. DOI: 10.13409/j.cnki.jdpme.20210419004.
为了揭示浙江温岭“6‧13”液化石油气(LPG)槽罐车特大爆炸事故的成灾机制和破坏威力,通过事故现场实地勘察并收集公开资料,发现此次事故的两次主要爆炸分别为沸腾液体扩展蒸汽爆炸(BLEVE)和蒸气云爆炸(VCE);分别采用BLEVE热辐射模型、能量法和Jarrett模型对两次爆炸进行了爆炸威力和灾害效应分析。结果表明:BLEVE事故中参与火球燃烧的LPG约为7.59 t,火球热辐射死亡半径、重伤半径、轻伤半径分别为93、124和200 m;BLEVE的爆炸威力相当于88.4 kg TNT炸药;BLEVE冲击波作用下人员的死亡半径和安全半径分别为9.5和23.6 m,建筑物的安全半径为55 m;VCE事故的爆炸威力相当于10.7 t TNT炸药;参与VCE反应的LPG约为1.05 t;通过Braker评估模型计算出的VCE事故中人员安全半径和死亡半径分别为221和84 m,钢筋混凝土结构倒塌(严重损毁)半径为94 m,瓦片掉落、钢筋混凝土墙产生裂缝对应的计算半径为136 m,窗框的损坏半径为273 m,建筑物的安全半径为700 m,计算结果与实际破坏情况吻合较好。
To reveal the power and mechanism of "6‧13" LPG tank truck explosion accident in Wenling, Zhejiang Province, on-site investigation was carried out and publicly reported data were collected, and it is found that this accident consisted of two explosions, i.e., the boiling liquid extended vapor explosion (BLEVE) and vapor cloud explosion (VCE). The BLEVE thermal radiation model and energy method, as well as the Jarrett model, were used to evaluate the explosion power and disastrous consequences in BLEVE and VCE. The results show that the liquefied petroleum gas (LPG) involved in the fireball of BLEVE was about 7.59 t. The thermal radiation death radius, the serious injury radius, and the minor injury radius were 93 m, 124 m, and 200 m, respectively. The equivalent explosion power of BLEVE was about 88.4 kg TNT explosive charge. The death radius and safety radius of personnel under shock wave in BLEVE were 9.5 m and 23.6 m, respectively. The safety radius of buildings was 55 m. The equivalent explosion power of VCE was about 10.7 t TNT. The LPG involved in VCE was about 1.05 t. The safety radius and death radius of personnel in VCE accident calculated by Braker evaluation model were 221 m and 84 m, respectively. The collapse ( serious damage ) radius of reinforced concrete structures was 94 m. The radius of tiles falling and cracking of reinforced concrete walls was 136 m. The damage radius of window frames was 273 m, and the safety radius of buildings was 700 m. The calculation results are in good agreement with the actual damage.
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