| 摘要 |
PROBLEM TO BE SOLVED: To provide a fall stone distribution system capable of preventing an accident from being caused by the fall of stone without constantly monitoring the possible fall of stone in the future. SOLUTION: In this fall stone distribution system, a blasting device 5 which is covered by a capsule 4 and not activated in normal conditions is attached to a highly collapsable rock 3. By activating the blasting device 5 according to the fall of the rock 3, the rock 3 can be crushed and distributed. COPYRIGHT: (C)2011,JPO&INPIT
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