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http://dx.doi.org/10.22704/ksee.2019.37.1.024

A Comparative Study on the Characteristics of Vibration Propagation during Open-Pit Blasting using Electric and Electronic Detonators  

Lee, Ki-Keun ((주)네스트 엔지니어링)
Lee, Chun-Sik ((주)네스트 엔지니어링)
Hwang, Nam-Sun ((주)한화)
Lee, Dong-Hee ((주)한화)
Publication Information
Explosives and Blasting / v.37, no.1, 2019 , pp. 24-33 More about this Journal
Abstract
Recently, Electronic Detonators have gradually increased their performance for various purposes such as vibration control and improved Fragmentation. This study analyzed the vibration estimation equations of electric and electronic detonator blast by comprehensive analysis of the vibration data collected during electric and electronic detonator blast waves at the comparison sites of urban areas, geology and soil conditions, stone quarries and mines in different areas of Korea from June 2017 to December 2018. It has been confirmed that electronic detonator blast can meet the criteria for allowing vibration even if maximum charge weight per delay is increased by 1.5 times compared to the electric detonator blast.
Keywords
Electric Detonator; Electronic Detonator; Vibration estimation equation; Maximum charge per delay; Vibration reduction;
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