Rock fragmentation and the design of underground materials handling systems

CIM Bulletin, Vol. 73, No. 814, 1980

G.D. JUST, Senior Lecturer, Mining Engineering, University of Queensland Australia

Extensive mechanization of underground mining operations, improvements in blasting technology and the development of simulation models for systems evaluation has now made it feasible to optimize rock fragmentation and materials handling operations. Methods of achieving these objectives are described in this paper, with particular emphasis on the need to obtain precise fi eld data measurements. Techniques are illustrated with reference to the sub-level open stoping system of mine production.
Keywords: Underground mining, Rock fragmentation, Materials handling, Sloping, Blasting, Gravity flow, Simulation, Slusher extraction, Flow characteristics.