BLASTING TREATMENT METHOD AND BLASTING TREATMENT DEVICE

• Main Authors: KOIDE, KENJI, IIDA, MITSUAKI, KITAMURA, RYUSUKE, FUJIWARA, SHUZO, MATSUNAGA, TAKEHIRO
• Format: Patent
• Language: English; French; German
• Published: 08.02.2012
• Subjects: AMMUNITION; BLASTING; EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION; HEATING; LIGHTING; MECHANICAL ENGINEERING; WEAPONS

Provided is a blast treatment method capable of performing blast treatment of a treatment subject with a simple structure, with high efficiency, and at low cost, while inhibiting scattering of harmful substances or the like to the outside. The method includes an inside explosive disposing step of disposing an inside explosive 20 for blasting a treatment subject 10 around the treatment subject 10; an outside explosive disposing step of disposing an outside explosive 34 having a detonation velocity greater than that of the inside explosive 20 at a position outside the inside explosive 20; and a blast step of detonating the outside explosive 34 using an initiation device 50, and initiating the inside explosive 20 by detonation of the outside explosive 34, thereby performing blast treatment of the treatment subject 10 by initiation of the inside explosive 20. The outside explosive disposing step includes an arrangement step of arranging a cord-like explosive member 30 containing the outside explosive 34 and having a shape extending in one direction so that a detonation propagation velocity in a specific direction of the inside explosive 20 initiated by the outside explosive 34 is greater than a detonation propagation velocity in the specific direction of the inside explosive 20.