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1. (WO2010113429) BLASTING METHOD AND BLASTING DEVICE

Pub. No.:    WO/2010/113429    International Application No.:    PCT/JP2010/002069
Publication Date: Fri Oct 08 01:59:59 CEST 2010 International Filing Date: Thu Mar 25 00:59:59 CET 2010
IPC: F42B 33/06
F42D 5/04
Applicants: KABUSHIKI KAISHA KOBE SEIKO SHO
株式会社神戸製鋼所
ASAHINA, Kiyoshi
朝比奈潔
KOIDE, Kenji
小出憲司
GOTOU, Takashi
後藤孝
SHIMODA, Hideaki
下田秀明
KITAMURA, Ryusuke
北村竜介
TSUTSUI, Nakaba
筒井央
Inventors: ASAHINA, Kiyoshi
朝比奈潔
KOIDE, Kenji
小出憲司
GOTOU, Takashi
後藤孝
SHIMODA, Hideaki
下田秀明
KITAMURA, Ryusuke
北村竜介
TSUTSUI, Nakaba
筒井央
Title: BLASTING METHOD AND BLASTING DEVICE
Abstract:
Provided are a blasting method and a blasting device which can blast an object to be blasted by using a blasting explosive exhibiting fluidity and detonating the explosive reliably. A blasting method comprises a blasting preparation step for accommodating a blasting explosive (30) exhibiting fluidity in a container (20), arranging the blasting explosive (30) around an object (10) to be blasted, and fixing a detonator (50) to the container (20), a step for housing the container (20), the blasting explosive (30) and the object (10) to be blasted in a chamber (60), a pressure reduction step for reducing the pressure in the chamber (60), and a blasting step for blasting the object (10) to be blasted with the blasting explosive (30) by detonating the blasting explosive (30). In the pressure reduction step, pressure in the chamber (60) is reduced while regulating outflow of the blasting explosive (30) to the outside of the container (20) and allowing outflow of gas in the container (20) to the outside by means of degassing units (26).