Measurement and Reduction of Noise from Detonating Cord Used in Quarry Blasting.
NTIS: PB 213 665 :29 pages
A series of tests were conducted by the Bureau of Mines to determine the best means of reducing noise generated by the detonating cord that is utilized for trunklines in quarry blasting. Ten different types of detonating cord were tested and evaluated for their acoustic qualities. The results of the investigation showed that noise levels produced by "low-core-load-per-foot" detonating cord "not covered" were lower than those produced by "high-core-load-per- foot" detonating cord covered with 6 inches of unconsolidated material.
IH; Report of Investigations
NTIS Accession No.
NTIS: PB 213 665