Detonation velocity

Underground hard rock (metal/non-metal) mining

Published in A.J.S. (Sam) Spearing, Liqiang Ma, Cong-An Ma, Mine Design, Planning and Sustainable Exploitation in the Digital Age, 2023

A.J.S. (Sam) Spearing, Liqiang Ma, Cong-An Ma

Detonation velocity is the velocity at which a shockwave front travels through an explosive upon detonation. This variable is used in calculating detonation pressure. The detonation velocity should always be higher than the speed of sound of the material being blasted. Typical explosive velocities range from 3,000 to 5,500 m/s. Variables such as charge diameter, temperature, confinement method and primer application affect the final detonation velocity of an explosive too.

Development of a new ammonium nitrate composition: an attempt to prevent misuse of explosives for antisocial activities

View Article

Journal Information

Published in Journal of the Chinese Institute of Engineers, 2020

Ahmet Ozan Gezerman, Burcu Didem Çorbacıoğlu

Detonation velocity is an important parameter that serves as a measure of the detonation performance of an explosive. In this study, the detonation velocities of various AN mixtures were determined according to the Dautriche method (Tete, Deshmukh, and Yerpude 2013), using cylindrical tubes with 250-mm length, 3-mm wall thickness, and 36-mm inner diameter. Commercial AN mixtures were used, that is, AN mixtures of various compositions were prepared by dilution with calcium carbonate or dolomite, and the addition of FBC ash. The samples were placed in the cylindrical tubes, and detonation was induced by an electrical fuse. In the detonator, the tubes were separated from each other by a distance of 100 mm to protect them from the detonation explosion.

Detonation velocity

Explore chapters and articles related to this topic

Underground hard rock (metal/non-metal) mining

Development of a new ammonium nitrate composition: an attempt to prevent misuse of explosives for antisocial activities