| 摘要 |
PROBLEM TO BE SOLVED: To provide a method and a crushing tool for crushing solid matters quickly with scarce generation of noise, vibration, and powder dust. SOLUTION: The crushing tool 2 comprises a rod-like part 21 whose one end side is engaged with and buried in a concrete part 11 of a pile 1 and a wedge 22 installed in the other end of the rod-like part 21 exposed out of the concrete part 11. When crushing the pile 1, the rod-like part 21 is pulled relatively to the wedge 22 to apply tensing power to the rod-like part 21. The tensing power (repulsing power F1 to the pulling power) applied to the rod-like part 21 works in the direction in which the wedge 22 is hit and accordingly with no need of hitting the wedge 22 with a hammer or the like, the edge part 221 of the wedge 22 is pushed in the inside of the concrete part 11 of the pile 1. Consequently, although the method is by mechanical crushing, noise, vibration, or powder dust is scarcely generated while crushing the pile 1. COPYRIGHT: (C)2007,JPO&INPIT |
