| 摘要 |
PROBLEM TO BE SOLVED: To provide a pile press-in device capable of enlarging a diameter of an auger and, at the same time, preventing the separation of a pile from a casing with the progress of pile press-in. SOLUTION: A pile press-in device 1 is equipped with a pile driving device 2 for making press-fit of a pile by holding the pile and an excavator 3 for excavating the ground by having a casing auger 6. The casing auger 6 is set in a position separated from the pile to the front of the pile held by the pile driving device 2. The pile driving device 2 includes a pile chuck 20 holding the pile in a detachable manner and hydraulic cylinders 21 and 21 for raising and lowering the pile chuck 20. The excavator 3 includes an auger chuck 5 for holding the casing auger 6 in a detachable manner and a casing elevating device 4 for bearing the auger chuck 5 on the pile chuck 20 so that the auger chuck 5 can freely rise and fall to the pile chuck 20.
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