抄録
In recent years, the various processing ways using explosives have been studied in our research group. All the studies are related to the use of the underwater shock wave from the explosion of explosives in water. To suit the particular application, it is necessary to make the control of underwater shock wave to serve the demands of respective purposes. The purpose of this study is to explore the control of underwater shock wave by the use of detonating cord in a spiral configuration. The control of underwater shock wave includes the convergence technique of underwater shock waves and the technique to keep a constant pressure in the operating time The explosion of the spiral detonating cord will be expected to result in the convergence of shock available at the nearby of the spiral center. From this, the high shock pressure is generated. We use the high-speed camera to observe the converging process of underwater shock wave and pressure transducers to measure the pressure at the spiral center.
