An empirical approach for predicting burden velocities in rock blasting

• Published in: Journal of Rock Mechanics and Geotechnical Engineering Vol. 13; no. 4; pp. 767 - 773
• Main Authors: Zhang, Zong-Xian, Chi, Li-Yuan, Yi, Changping
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 01.08.2021; Oulu Mining School,University of Oulu,Oulu,FI-90014,Finland%State Key Laboratory of Explosion Science and Technology,Beijing Institute of Technology,Beijing,China%Division of Mining and Geotechnical Engineering,Lule(a) University of Technology,Lule(a),Sweden; Elsevier
• Subjects: Burden velocity; Delay time; Gruv- och berganläggningsteknik; Kinetic energy; Mining; Mining and Rock Engineering; Rock blasting; Tunnelling; Rock blasting; Mining; Tunnelling; Delay time; Kinetic energy; Burden velocity

An analytical relation between burden velocity and ratio of burden to blasthole diameter is developed in this paper. This relation is found to be consistent with the measured burden velocities of all 37 full-scale blasts found from published articles. These blasts include single-hole blasts, multi-h...