The prediction of blast-induced swell by means of computer simulations

CIM Bulletin, Vol. 86, No. 967, 1993

R.F. Favreau, College Militaire Royal de St-Jean St-Jean, Quebec

After a blast, the volume of the blasted rock normally occupies more space that it did before the explosion. The degree of such swell significantly affects the efficiency of digging the muck with a shovel or dragline. This paper explains why swell occurs, and describes the new subroutine SWELL of the blast simulator BLASPA which can simulate blast-induced swell. Results are also presented which display the effect of various blasting parameters on the degree and distribution of the swell within the muck pile of a bench blast.
Keywords: Computer applications, Blast-induced swell, Blast simulators, BLASPA, SWELL.