| 摘要 |
PROBLEM TO BE SOLVED: To provide a reaction frame adaptable to a plurality of piles having diameters for producing strong reaction while allowing easy and quick installing and withdrawing work. SOLUTION: A clamp fixing means 20 is mounted on a frame body 10 for fixing a clamp of a pile press-in/extraction machine. An attachment 22 is mounted on the clamp fixing means 20 for allowing the press-in of the pile having a different diameter. A clamping means 30 is previously formed outside the frame body 10 for clamping a reaction pile 50 pressed in a ground. A connection means 40 to be connected to the first pressed-in pile 60 is provided at the front end. COPYRIGHT: (C)2006,JPO&NCIPI
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