| 摘要 |
PROBLEM TO BE SOLVED: To make it possible to easily pull an earth auger out of the ground in a pile press-fit device for making press-fit of a pile while making excavation in advance with a casing loaded earth auger. SOLUTION: A pile press-fit device is equipped with a chuck 20 for gripping a pile (steel sheet pile 2) and a hydraulic cylinder 15 for raising and lowering the chuck 20. The chuck 20 is equipped with a casing chuck for gripping a casing 32 of an earth auger 30 and the hydraulic cylinder for raising and lowering it in the chuck 20. A casing bearing section 40 separated from the chuck 20 for gripping the casing 32 is provided to bear. The earth auger 30 can be speedily pulled out from the ground by using the casing chuck, hydraulic cylinder for raising and lowering it, chuck 20, hydraulic cylinder 15 for raising and lowering the chuck and casing bearing section 40 without using crane.
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