| 摘要 |
PROBLEM TO BE SOLVED: To provide a pile extracting device capable of improving working efficiency, by cutting and removing an upper part of a pile, without fixing the suspended pile to the ground. SOLUTION: This pile extracting device 1 has a portal frame 20 supporting an upper frame body 21 by two columns 22, a plurality of support blocks 30 for supporting the pile K and a rope winding means for the plurality of blocks; and is characterized in that a pulley group 27B for the plurality of blocks is arranged in the upper frame body 21 of the portal frame 20, and a pulley group 31 is arranged in the respective support blocks 30, and a lifting wire 11B (a rope) wound on the rope winding means for the respective blocks is extended to the pulley blocks 27B for the blocks arranged in the portal frame 20 and the pulley group 31 arranged in the support blocks 30, and is constituted to lift the respective support blocks 30 by the rope winding means for the respective blocks. COPYRIGHT: (C)2007,JPO&INPIT
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