Experimental study on corner effect of emulsion explosive in a curved charge based on explosion-proof application

Emulsion explosive is a common commercial explosive used in mining and demolition fields. As an energy output source, many accidents happened in the manufacturing of emulsion explosives. In order to understand the propagation process of detonation wave caused by emulsion explosive and ensure safety in manufacturing of emulsion explosives, this paper studied corner effect of emulsion explosives (EE) experimentally via detonation velocity measurement. In the series of experiments, obvious velocity deficits were observed during the whole propagation of detonation wave when emulsion explosives were charged in curved. Two important charge parameters, including curvature radius and cross section are of the charge, were investigated experimentally. Results showed that curvature radius played a more important role in the velocity deficit of detonation wave. After compared with that of conventional high explosives (CHE), results indicated that the corner effect acted on emulsion explosives was more obvious than that of conventional high explosives.