Title:
BLASTING METHOD
Document Type and Number:
Japanese Patent JP2000088500
Kind Code:
A
Abstract:
To shorten the work time without sacrifice of hydraulic pressure effect.
In the inventive blasting method, a previously bored blasting hole 10 is filled with detonator 12 and then the air gap part 14 is filled with a jerry-like filler 16 before igniting the detonator 12. The detonator 12 is loaded on the rear side of the blasting hole 10 and a fuse 18 is led out from the open end of the blasting hole 10 to the outside. The jerry-like substance composing the filler 16 principally comprising a gel substance produced by adding water to a molecular water absorbing agent or a natural vegetable substance, e.g. starch, cellulose or polysaccharide, which can be added with clay and water.
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Inventors:
NAKATANI MICHIO
RINKA TOSHINORI
NAGASATO JUNICHI
NAKAMA SHOJI
RINKA TOSHINORI
NAGASATO JUNICHI
NAKAMA SHOJI
Application Number:
JP26118698A
Publication Date:
March 31, 2000
Filing Date:
September 16, 1998
Export Citation:
Assignee:
OHBAYASHI CORP
International Classes:
F42D1/28; (IPC1-7): F42D1/28
Attorney, Agent or Firm:
Matsumoto Masatoshi