Ground vibration and airblast are significantly reduced when delay sequences are properly programmed., , Records of every explosion are kept on site to help engineers determine the optimal powder factor for future blasts., , Unless the safety zone radius is large enough, flying rock may expose personnel to serious hazards., , Designed with precision, the three-dimensional blast pattern ensured that the solid body of rock fractured evenly., , Drilling the holes to the exact depth required, the operator followed the blast design specifications carefully., , Having supervised over 200 conventional blasting operations in the quarry, the Senior Engineer knew exactly how to set off the charges safely., , The detonator must be placed securely inside the charge before the hole is stemmed., , All blasting operations are supervised by certified personnel who hold a valid blasting ticket., , Designed specifically for underground mining operations, this new slurry explosive liberates energy more slowly than conventional dynamite., , Fractured by the enormous pressure of the explosion, the rock yielded thousands of tonnes of debris ready for transport., , Loading the emulsion into the drill holes, the blasting crew took special care not to damage the detonator wires., .
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Blasting - basic vocabulary
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