Application of industrial electronic detonators in underwater blasting
In order to solve the relevant problems encountered in underwater blasting operations,the methods of numerical simulation and engineering practice were adopted to analyze the influence of different initiation methods on the harmful effects of blasting.At the same time,the influence of different initiation sequences in the hole with industrial electronic detonators on the blasting effect and the influence of the air bubble curtain on reducing the shock wave were compared.The numerical simulation results show that the hole-by-hole initiation method with industrial electronic detonators has a great advantage in controlling blasting vibration and shock wave,with the maximum vibration reduction rate reaching 71.63％and the maximum shock wave reduction rate reaching 73.2％.The sequence of preferential initiation from the top with millisecond delay in the hole can effectively improve the rate of large blocks and the base phenomenon.The air bubble curtain weakens the blasting shock wave to a large extent.The application of industrial electronic detonators in underwater blasting can reduce the harmful effects of blasting,improve the blasting effect and avoid misfired charges,which can provide corresponding references for similar projects.
万方数据
维普
