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A Method of Explosion Modelling Using the Concept of Momentum Trap  

Choi, Byung-Hee (한국지질자원연구원)
Kang, Myoung-Soo (한국지질자원연구원)
Ryu, Chang-Ha (한국지질자원연구원)
Kim, Jae-Woong ((유)동광)
Publication Information
Explosives and Blasting / v.33, no.4, 2015 , pp. 7-13 More about this Journal
Abstract
Recently, as the demand for development and utilization of underground space is increasing worldwide, the blast damaged zone has become a major issue in constructing underground structures. In this study, to verify the explosion modelling method for blast-damaged zone (BDZ) around underground cavern, a series of small-scale test blasts was conducted using the concept of momentum trap. According to the test results, the input parameters to the numerical model (ANSYS LS-DYNA) were corrected. It is concluded that the suggested method of miniature blasting and numerical modelling using the MT concept well simulates the velocity of the MT projectile under given conditions.
Keywords
Explosion modelling; Blast damaged zone; Miniature blasting; Momentum trap; ANSYS LS-DYNA;
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