(PDF) Blast Optimization and Vibration Control at a Multi ...
Vibration and noise levels were low better was a reduction in the percent ered as shown by the attenuation equations resultant from age of coal product size 0 x 10 mm (0 x in) and size the use of distinct combinations of delay periods in hole over 38 mm (1,49 in) and an increase in the product size 36 The Journal of ...