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A Study on the Tunnel Blasting Technique with a Combined Application of Electronic Detonators and Low Vibration Explosives in a Close Proximity to a Safety things  

Oh, Sei young (한국철도시설공단 수도권본부)
Lee, Chun sik ((주)네스트 엔지니어링)
Lee, Ki keun ((주)네스트 엔지니어링)
Lee, Dong hee ((주)한화)
Lee, Seung jae ((주)한화)
Park, Jong ho ((주)한화)
Publication Information
Explosives and Blasting / v.35, no.4, 2017 , pp. 36-47 More about this Journal
Abstract
Due to civil complaints on vibrations and noises arising from blasting, mechanical excavation has been widely used for tunneling rather than the method of blasting, especially in the case of being in a close-proximity of 10M-20M range to a safety-thing. However, mechanical excavation, though less, it does increase the cost of whole construction project as the period of excavation is much prolonged from lack of constructability. This study aims to research and develop an effective blasting method that can ensure the constructability of shortened excavation period whilst not compromising the safety of the safety-things in a proximity to the blasting site by using a combination of an electronic detonator that can accurately control its delay period and a Low Vibration Explosives(LoVEX) that is effective on vibration control.
Keywords
Electronic detonator; Low vibration explosives; Vibration control;
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