| 摘要 |
PROBLEM TO BE SOLVED: To provide a loading pipe capable of surely ensuring a space allowing a parent die to be mounted at a tip of the loading pipe when slurry-like explosive having fluidity is put by using a loading machine and when the parent die for initiating the explosive is put in a blasting hole separately from a face, and allowing the slurry-like explosive to surely run around the parent die in putting the explosive. SOLUTION: This loading pipe for blasting comprises a double tube consisting of an outer pipe and an inner pipe for putting the parent die and an additional die into the blasting hole. The loading pipe is composed of the outer pipe having an outside diameter smaller than the inside diameter of the blasting hole and an inside diameter larger than the outside diameter of the parent die, and the inner pipe having an outside diameter smaller than the inside diameter of the outer pipe and an inside diameter larger than the diameter of the additional die to be put, and is characterized by that the outer pipe can be slid with respect to the inner pipe in the longitudinal direction thereof. COPYRIGHT: (C)2006,JPO&NCIPI
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