Damage to the quarry distribution network during blasting operations
Abstract
During explosions on quarry ledges it is possible to hit elements of the quarry distribution network (CDN) with pieces of the blasted mass. This causes both direct damage, caused by damage to the elements of the CDN, and indirect damage - caused by the downtime of mining machines during the repair of damaged elements. In the periodical press there are still ongoing discussions about the distances safe for possible scattering of blast pieces. Drilling and blasting specialists have proposed several calculation formulas for determining the possible maximum flight of blasted mass pieces. But the issue of power grid equipment in the danger zone is still unclear. In practice, the question of dismantling the CDN from the danger zone is solved intuitively, depending on the experience of operating personnel ...
None
References
- Gordon B. E. On the explosion-safe distance for quarries. Gornyi zhurnal, No. 9, 1962.
- Lavrentiev M. A., Kuznetsov V. M., Sher E. N. About directional throwing of soil by means of explosion. V sb. Narodno-khozyaystvennoe ispolzovanie vzryva, issue 17. Izd. Sib. AN SSSR, 1961.
- Sadovskiy M. A., Belopukhov L. K. About safe distances on the ground dispersion at underground explosions. Bezopasnost truda v promyshlennosti, No. 6, 1963.