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A Case Study on the Application of Self Supporting Air Tube  

Lee, Shin (동아대학교 건설기술연구원)
Kang, Dea-Woo (동아대학교 자원공학과)
Publication Information
Tunnel and Underground Space / v.17, no.4, 2007 , pp. 248-254 More about this Journal
Abstract
Already, the air deck blasting method has been used to take many advantages of blasting. In the existing air deck blasting method, air deck is made usually on column charge. But in the case study, we analyzed about the effect of self supporting air tube which made air deck in column charge. As results of this case study, it was shown that blasting vibration was decreased about $20{\sim}26%$ and quantity of explosive was decreased about $10{\sim}20%$. Also, fragmentation was shown to be smaller than it of common blasting method.
Keywords
Air tube; Air deck blasting; Blasting vibration; Air-blast;
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  • Reference
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