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Study on Blast Effects of Decoupling Condition and Polymer Gel Coupling in Single Blast Hole by Numerical Analysis  

Ko, Young-Hun (전남대학교 에너지자원공학과)
Jung, Seung-Won (전남대학교 에너지자원공학과)
Yang, Hyung-Sik (전남대학교 에너지자원공학과)
Publication Information
Explosives and Blasting / v.36, no.2, 2018 , pp. 1-9 More about this Journal
Abstract
In this paper, AUTODYN blasting simulation of single blast hole were conducted to evaluate the blasting effects of Polymer Gel. The coupling mediums used as the filling material around an explosive charge were air and gelatin. each simulation case was D I(decoupling index) 1.0, 1.25, 1.56 with air or polymer gel coupling materials. In order to evaluate blast effects full charge model was used as a reference for evaluation of blasting effects. The results of numerical analysis showed that fragmentation of a limestone model of were much more fractured by polymer gel medium than by air medium. As expected, the transmitted peak pressure was higher polymer gel coupled model than in air medium.
Keywords
Single blast hole; AUTODYN; Polymer gel; Coupling medium; Decoupling index;
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Times Cited By KSCI : 2  (Citation Analysis)
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