Study On Deep Hole Blasting In The Open Air Based On High-speed Video

In engineering blasting, those flying far away from the Blasting heap, called a flying rock, and in the process of blasting in mines, there are always individual slung shot fly far away, so often to threaten the blasting area personnel, equipment and building, etc. And in each blasting process, the key is to move mine excavator and other large equipment which move slowly if they move too far, it will delay time and the production, distance control improperly, will pose a threat to equipment. So blasting slung shot is a big threat to blasting, a long time, attention and research on their respective flight distance is also put forward the opinion, but due to the effect in the process of blasting slung shot are many factors, its subject to blasting parameters, blasting scheme, perforation position, the blocking conditions and a series of complex factors, so the distance formula has not certain limitations.This paper summarizes general slung shot now flying distance formula, empirical formula and statistical formula, there are some other formula is proposed, based on application scope, condition, etc. Then according to the actual blasting were observed and compared.Finally by using high speed camera, based in Liaoningshougang boron iron ore, by determining the blasting parameters, the blasting process in quantitative analysis, through several times, according to the high speed camera software analysis the result of the measurement, and according to the experimental data, an applicable to Liaoning shougangpengtie applied by way of blasting slung shot distance formula, so that it can more effectively avoid flying rock.