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Estimation of Ground Vibrations Around a Pillar Due to Blast Loading and the Impact of Flyrocks  

Lee, Sang-Gon ((주)쏘일테크엔지니어링)
Kang, Choo-Won (조선대학교 에너지자원공학과)
Chang, Ho-Min (조선대학교 에너지자원공학과)
Ryu, Pog-Hyun (조선대학교 에너지자원공학과)
Kim, Jang-Won (조선대학교 에너지자원공학과)
Song, Ha-Rim (조선대학교 에너지자원공학과)
Kim, Seung-Eun (조선대학교 에너지자원공학과)
Publication Information
Explosives and Blasting / v.28, no.1, 2010 , pp. 1-10 More about this Journal
Abstract
In blasting for lighting, fatigue behaviors of pillars such as destruction and deformation may occur due to blasting vibration and flyrock, which may cause collapses of cavities. This study aims to identify dynamic behavior of pillars to maintain efficient safety of cavities in large drafts. when they collide with flyrocks under blasting for the excavation. For the purpose, we compared ground vibration around pillar when flyrock collided with the pillar and that when explosive blast happened for the excavation. we conducted fragmentation analysis of the flyrock and compared impact vibration obtained from empirical equation with ground vibration obtained from regression analysis of real vibration data. also we compared those with results analyzed from numerical analysis.
Keywords
Blasting vibration; Impact vibration; Flyrock; Pillars;
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  • Reference
1 M.A. Perkin, 1989, Explosives Engineering Handbook.
2 대한광업진흥공사, 2005, 대규격 채굴공동 굴착 시 발파에 의한 광주의 변형거동 연구.
3 선우 춘, 류창하, 최병희, 2001, 영상처리기법에 의한 발파 파쇄암의 파쇄도 측정, 화약.발파19.2, pp. 6-8.
4 임대규 외, 2004, 발파해체 시 낙하충격진동 예측에 관한 연구, 대한화약발파공학회지, Vol22, pp. 45-46.
5 장수호, 신일재, 최용근, 이정인, 2000, 발파에 의한 터널 주변 암반의 손상영역평가에 관한 연구, 한국지반공학회논문집, Vol. 16, pp. 130-132.