Applications of explosive compaction for tailings volume reduction

Applications of the sequential detonation of explosives to cause tailings volume reduction in tailings ponds are discussed. The method is expected to be effective where the dominant tailings components comprise granular, low to non-plastic silt/sand mixtures. The paper discusses the mechanisms associated with explosive compaction, factors influencing design, and typical ground response (vibrations, settlements, pore water pressures) observed. Finally, methodologies and approximate unit costs associated with applying the technique to densification of a generic tailings pond are described.