| 摘要 |
PROBLEM TO BE SOLVED: To provide a piling method to a bed rock by which pipes can be easily driven into even a bed rock that has been impossible in being driven in conventional cases and which is high in working efficiency and economical efficiency, and further, which prevents the driving energy of a pile body from being attenuated when a locking metal ware for the water conduction pipe collides with the bed rock as the pile body is driven into the bed rock. SOLUTION: The water conduction pipes 2 are vertically movable relative to the pile body 1, and attached to the pile body 1 adjacently. The pile body 1 is driven in the bed rock. The crushed bed rock is removed by jet water from the water conduction pipe 2. In this piling method, a anti-vibration hardware 3 of the water conduction pipe 2 is welded with the pile body 1 in such an extent that the anti-vibration hardware 3 is easily broken by a shock when the anti-vibration hardware 3 has collided with the bed rock. COPYRIGHT: (C)2004,JPO
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