Browse > Article

Advancement of Blast Effect by Inducing Drill Jumbo on Automatic Drilling System  

Kim, Seung-Jun (전남대학교 에너지자원공학과)
Kim, Jeong-Gyu (전남대학교 에너지자원공학과)
Ko, Young-Hun (전남대학교 에너지자원공학과)
Ahn, Je-Min (전남대학교 에너지자원공학과)
Kim, Nam-su ((주)NSB 나우이엔씨)
Yang, Hyung-Sik (전남대학교 에너지자원공학과)
Publication Information
Explosives and Blasting / v.34, no.2, 2016 , pp. 10-17 More about this Journal
Abstract
Drilling operation for blasting is an important factor to determine blast effect. Drilling errors that arise from performing drilling for blasting purposes can reduce blasting effect causing residual holes, overbreak, and heterogeneous fragmentation, etc. Automatic drilling system was induced for precise drilling. As a result, drilling error caused by spaces between holes and burden was minor at 0~2.6% and accordingly, blasting effect was improved with over 90% drilling rate, the ratio of overbreak amount to total drilling amount at 4.3%, proportion of fragmentation rock under 50cm at 89~95% and so from this analyses, it was estimated to reduce the total cycle times related to blasting process.
Keywords
Automatic drilling; Blasting efficiency; drilling; Jumbo drill;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
1 김양균, 김형철, 유정훈, 2003, 터널발파 작업시 여굴저감을 위한 천공방법 연구, 대한화약발파공학회지, Vol. 21, No. 2, pp. 1-13.
2 노유송, 김정규, 고영훈, 김승준, 양형식, 2015, 3차원 레이저 스캐너를 이용한 터널의 여굴량 평가 방법, 대한화약발파공학회 춘계학술발표회 논문집, pp. 4-5.
3 배상훈, 김대상, 김무일, 2005, 터널에서의 여굴 저감 방안에 관한 연구, 대한화약발파공학회지, Vol. 23, No. 1, pp. 41-46.
4 이덕환, 최성웅, 김창오, 2014, 발파공의 천공오차와 발파정확도의 상관성에 관한 현장조사 및 계측분석기법 연구, 터널과 지하공간(한국 암반공학회지), Vol. 24, No. 5, pp. 386-394.