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A Numerical Study on the Effect of a Guide Hole on Crack Propagation Control in Blasting  

Lee, Hee-Gwang (전북대학교 자원.에너지공학과)
Kim, Hak-Man (전북대학교 자원.에너지공학과)
Kim, Seung-Kon (전북대학교 자원.에너지공학과)
Cho, Sang-Ho (전북대학교 자원.에너지공학과)
Publication Information
Tunnel and Underground Space / v.20, no.4, 2010 , pp. 299-307 More about this Journal
Abstract
The model experiments, which employ a charge hole and guide hole, are simulated to examine the effect of the guide hole on the crack propagation control in blasting. Crack patterns resulted from the analysis models, which consider the distance between the charge hole and guide hole, were compared. From the simulation analysis for the model experiments, it was revealed that all the guide holes used in this study were effective for controlling the crack propagation in blasting.
Keywords
Guide hole; dynamic fracture process analysis code; crack propagation control;
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Times Cited By KSCI : 3  (Citation Analysis)
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