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 Blast Simulators for the Mining, Construction & Explosive industry

 
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  Blaspa Delay Simulators
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 When a bench blast takes place, there are three values of the delay between rows which influence significantly on the quality of the blast results; they are (1) the Minimum Delay; (2) the Optimum Delay (or DSB Delay) to give the best fragmentation of the rock; and (3) the Necessary Delay required in order to create sufficient horizontal swell to move the rock of a back row adequately to prevent too much upward movement and flyrockBlaspa includes simulators which allow the evaluation of each of these types of delays for a given blast method in a given rock type.  A simulation can calculate the appropriate value of the delay, in millisec, for each case.

 

   Minimum Delay < Shock Wave Stress and Displacement >

The value of the Minimum Delay is evaluated with the simulator which calculates the speed of the fragmentation front created inside the rock mass during a blast; presently this value is available to the user when he runs the simulator < Shock Wave Stress and Displacement >.  For more information on the use of this simulator to evaluate the Minimum Delay, click:

 
   Optimum Delay < Shock Wave Stress and Displacement >

The value of the Optimum Delay is evaluated with the simulator which calculates the velocity of the rock movement at the face of the bench; presently this value is available to the user when he runs the simulator            < Shock Wave Stress and Displacement >.  For more information on the use of this simulator to evaluate the Optimum Delay, click:

    Necessary Delay < Swell Delay >

The value of the Necessary Delay is evaluated with the simulator which calculates the horizontal swell between two rows during a blast.  The calculation of this swell is obtained by comparing the displacement of the rock at the rear of a front row of the bench with that at the front of a rear row of the bench.  For more information on this simulator, click:

   
     
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