Flyrock calculation
WebOct 22, 2024 · To do so, the numeric was used to calculate the flyrock distance of fragments sizing 150, 200, 250, and 300 mm in diameter for launch velocities ranging from 10 to 250 m/s and then to calculate the flyrock distance of the same fragments with launch velocities increased by 10%. WebFlyrock is one of the crucial issues in bench blasting, as it is not only a safety concern but also affects the pro ductivity. The percentage of accidents occurring due to flyrock …
Flyrock calculation
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http://article.sapub.org/10.5923.j.env.20110101.01.html 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 …
WebSep 8, 2015 · Velocity and launch angle of flyrock fragment was calculated using high speed video analysis and used to determine the distance of the flyrock. However, the … WebOct 22, 2024 · The result was a neuro-numerical couple which was capable to predict flyrock occurrence, estimate the launch velocity of flyrock fragments, and calculate the maximum distance of flyrock fragments. The safe distance was then calculated by multiplying the flyrock distance with a factor of safety.
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. WebMay 13, 2011 · To reduce the potential for fly rock incidents, consider: the size, geological nature, shot location and site topography hole diameter, depth of charge and burden (charge weights, locations and detonation sequences) when determining an exclusion zone, using additional blanketing material when necessary
WebApr 26, 2024 · Three hybrid intelligent models in estimating flyrock distance resulting from blasting.Engineering with Computers，2024：1～14. [7]Lee S，I.ParkJ.-K.Choi，Spatial prediction of ground subsidence susceptibility using an artificial neural network.Environmental management，2012，49（2）：347～358.
WebFirst of all, select whether you want to do calculations in the 2D system or 3D system from the first list After you do that, you need to select whether you will be selecting coordinates or points for first vector from second drop down list Now it’s time to put the values of the first vector in their designated fields robert the bruce and spiderWebDec 1, 2024 · Six computational models were developed to estimate flyrock distance, including the empirical, MLP, HHO-MLP, WOA-MLP, SVM, and RF models. To develop … robert the bruce 1st king of scotlandWebOct 1, 2011 · The method is based upon formulation and solution of differential equations of ballistic flight of the flyrock fragments. The equations are formulated according to … robert the bruce 2nd wifeWeb1. Topographical original measurements. 2. Measurement of coal exposure roof and floor 3.Weekly and monthly progress measurement 4. Stake out … robert the bruce and the spider factsWebThis presentation illustrates powerful and practical step by step techniques in using the Scaled Depth of Burial calculation when designing a blast, and the safety factors to observe and monitor in blast designing to prevent wasteful energy loss and dangerous flyrock or over confinement smothering detonation energy creating poor fragmentation and … robert the bruce and the spider storyWebDefinition of flyrock in the Definitions.net dictionary. Meaning of flyrock. What does flyrock mean? Information and translations of flyrock in the most comprehensive … robert the bruce actor braveheartWebFlyrock, or wild flyrock, is rock that is ejected from the blast site in a controlled explosion in mining operations. The term refers in particular to rock that flies beyond the blast site, … robert the bruce and kirkpatrick