engleski

Acoustic characteristics of shock tube detonation

Nowdays the nonelectric systems are used more frequently for blasting activation than the electric systems due to their usage simplicity. The main part of the whole system are the thin tubes that generate and transfer shock wave from the starting point to the nonelectric detonator of the explosive. Depending on the structure and density of the inner "explosion layer" of the tube wall, propagation of the shock wave in tubes is 1900 to 2100 m/s. While setting up complex blasting fields, shock tubes are among themselves connected with nonelectric connectors or bunch connectors, all in order to insure effective blasting. It is necessary that the energy of the shock wave is safely transferred from one to many tubes or to nonelectric detonator. The task is to achieve maximum efficiency while transferring the energy of the shock wave from one tube to the others or to the detonators. Increase of the efficiency could be achieved by resonant construction of connectors adjusted to the spectrum of the shock wave of the tubes. Therefore the determination of the acoustic shock wave characteristics of the shock tubes was examined.

shock tube; shock wave; spectrum; blasting

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