2014, Volume 16, Issue 11
Strategic Study of CAE >> 2014, Volume 16, Issue 11
Research on initiation network reliability of viaduct demolition blasting
1. The Key Laberatory of Geotechnical Mechanics and Engineering of the Ministry of Water Resources， Changjiang River Scientific Research Institute，Wuhan 430014，China；
2. Wuhan Blasting Engineering Co. Ltd.，Wuhan 430023，China
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Abstract
Non-electric initiation system was the only initiation system for viaduct blasting demolition. Aimed at the application actuality, the relay point characteristicof multiple parallel detonator initiation system was studied in the paper, and the simple formula for mean value of the relay point initiation time was put forward. Reliability standard for non-electric initiationsystem of different scale was established. Duplex-cross non-electric initiation systemwas invented, which not only can avoid side roll in the viaduct collapse process, but also can elevate the reliability of the relay point. Research achievements can provide theoretical basis for viaduct blasting demolition initiation system design.
Keywords
viaduct ; demolition blasting ; initiation system ; reliability
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References
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