ENVIRONMENTAL EFFECT OF DELAY TIME IN OPEN PIT BLASTING

In this study, the effect on the ground vibration values of two different surface delay times (17 ms and 25 ms) in between holes in the blasting operations in the quarry belong to the ？orum Votorantim Cement Corporation were investigated. The vibration measurements of the blasting in both surface delay times have been taken from different distances, and the relationship between the scale distance (SD) and the peak particle velocity (PPV) was investigated. From the test results of the two different surface delay times, not only have there been different results obtained in the relationship between the scale distance and the peak particle velocity but also different results on the frequency have been obtained, the amplitude and the duration of the vibration