| 摘要 |
PURPOSE:To easily drive a pile under low-niose and low-vibration conditions by penetrating a reaction pile and a main pile into the ground by utilizing the weights of a crane, a crane base, and a main beam. CONSTITUTION:A crane base 11 is set on the ground 1, and a crane 3 is mounted on the base 11. A main beam 8 is fixed to the base 11. A reaction pile 5 is penetrated into the ground 1 by utilizing the weights of the crane 3, the base 11, and the main beam 8 by means of a reaction pile penetrating drawer 4 attached to the main beam 8. A main pile 7 is then penetrated into the ground 1 by utilizing the drawing resistance of the pile 5 and the weights of the crane 3 and the main beam 8 by means of a main pile penetrator 6 attached to the main beam 8. The reaction pile 5 is drawn out by the drawer 4 for recovery. Since the piles are driven by utilizing the weights of the crane 3, etc., the driving of the pile can be made under low-noise and low-vibration conditions. |
