WebMay 26, 2011 · Once rock velocity is known then the flyrock range L m (m) is calculated from the equation of ballistic trajectories. For bench blasting, Lundborg et al. [ 29] proposed the maximum flyrock according to ( 1 ): L_ {m} = 260d^ {2/3} (1) An alternative approach was attempted by Roth [ 30] for obtaining the flyrock range. http://earthresourcetechnology.com/flyrock.aspx

FLYROCK ESTIMATION - Mine Excellence

WebDefinition Rock fragment projected in different directions beyond expected or desired distances from the blast face, owing to improper blast design and/or its application and/or presence of adverse rock conditions that … Weballows the user to calculate projectile distances by specifying the weight, diameter, drag coefficient, altitude, and the initial velocity and launch angle of the object. The site is … dry flower cafe coco

Flyrock prediction ? From mystery to science - Quarry

WebFlyrock comes in different sizes and shapes, ranging in mass from few ounces to several tons. Persson et al. [1994] referenced flyrock weighing approximately three tons thrown to a distance of 980 ft. The blaster determines the bounds of the blast area, a nd flyrock is not expected to travel beyond the blast area. WebJan 1, 2011 · Calculation for Normal Fly Rock Zone 1. Calculation of throw distance and initial velocity of rock fragments can be done with the help of few empirical formulae … WebSeveral software are available for prediction of vibrations, airblast, wave front reinforcement, flyrock, dust plume movement resulting from blasting. This paper also gives examples of prediction tools can be used before … dry floral foam blocks