Zhou Xi-Hua, Meng Le, Shi Mei-jing, Guo Liang-hui, Zhao Jian-yuan, Feng Cun-cun. Influences of sealing fire zone in high gas mine on impact factors of gas explosion limits[J]. Explosion And Shock Waves, 2013, 33(4): 351-356. doi: 10.11883/1001-1455(2013)04-0351-06
Citation:
Sun Jinshan, Yao Yingkang, Wu Liang, Xie Xianqi, Jia Yongsheng, Han Chuanwei, Liu Changbang. Numerical simulation of water-pressure blasting mechanism in breaking viaduct box girder[J]. Explosion And Shock Waves, 2017, 37(2): 299-306. doi: 10.11883/1001-1455(2017)02-0299-08
Zhou Xi-Hua, Meng Le, Shi Mei-jing, Guo Liang-hui, Zhao Jian-yuan, Feng Cun-cun. Influences of sealing fire zone in high gas mine on impact factors of gas explosion limits[J]. Explosion And Shock Waves, 2013, 33(4): 351-356. doi: 10.11883/1001-1455(2013)04-0351-06
Citation:
Sun Jinshan, Yao Yingkang, Wu Liang, Xie Xianqi, Jia Yongsheng, Han Chuanwei, Liu Changbang. Numerical simulation of water-pressure blasting mechanism in breaking viaduct box girder[J]. Explosion And Shock Waves, 2017, 37(2): 299-306. doi: 10.11883/1001-1455(2017)02-0299-08
As a thin-walled structure with a very high content of reinforcement, a viaduct box girder is hard to break using the drilling-style blasting. In this paper, based on the demolition project of Zhuan Yang Viaduct in Wuhan, a blasting plan using the water-pressure blasting technique was proposed to demolish multi-chamber reinforced concrete box girders. The breaking process of the multi-chamber box girder was simulated using the dynamic finite element method, the role played by the shockwave and the explosive gas in the breaking process were analyzed and, on the basis of the analysis and the actual blasting results, the charge arrangement, the blasting parameters and the blasting sequence of the water pressure blasting plan were discussed.
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Zhou Xi-Hua, Meng Le, Shi Mei-jing, Guo Liang-hui, Zhao Jian-yuan, Feng Cun-cun. Influences of sealing fire zone in high gas mine on impact factors of gas explosion limits[J]. Explosion And Shock Waves, 2013, 33(4): 351-356. doi: 10.11883/1001-1455(2013)04-0351-06
Zhou Xi-Hua, Meng Le, Shi Mei-jing, Guo Liang-hui, Zhao Jian-yuan, Feng Cun-cun. Influences of sealing fire zone in high gas mine on impact factors of gas explosion limits[J]. Explosion And Shock Waves, 2013, 33(4): 351-356. doi: 10.11883/1001-1455(2013)04-0351-06
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