To provide a loading method for a granular explosive, capable of securing a suitable charge length and reducing a charging amount when the granular explosive is loaded into a charge hole while suppressing the damages to a rock bed by preventing over charging and demonstrating a decoupling effect for reducing the quaggy regions of surrounding natural grounds and mitigating influence on the surrounding environment.
The method includes a process for charging a detonator dynamite 20 and a spacer 30 sequentially from the deepest section in the charge hole 10, and a process for charging a loading nozzle 40 in the charge hole 10 and loading the granular explosive 50 by air-blowing from the loading nozzle 40. In the process of air-blowing the granular explosive, a rear end of the spacer 30 and a front end of the loading nozzle 40 are arranged to be separated from each other.
MIHASHI HIDEYO
KURITA HIROMITSU
MATSUZAWA SATOSHI
| JPS5751300U | 1982-03-24 | |||
| JP2005030710A | 2005-02-03 | |||
| JP2005201611A | 2005-07-28 | |||
| JP2009138955A | 2009-06-25 |
| GB725371A | 1955-03-02 |
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