effect of quarry activities on archa - muzycznepszczolki.pl
effect of quarry activities on archa trijntjewielnl. Quarry blasts assessment and their environmental impacts, From the vibration records in terms of PPV, air blast and SD at the SUMED area due to the blasting activities at the National Cement Quarry, the maximum allowable charge per delay without any environmental effect is 591 kg for a safe distance of 650 m (the minimum distance between ...