| 摘要 |
PURPOSE:To drive the piles without making any vibration and noise by hardening after excavating the hole for piling by rotating in opposite directions a revolving cylinder and a rotary shaft having the excavating blades, supplying the hardening agent, drawing out the revolving cylinder, etc., and inserting the reinforcing materials. CONSTITUTION:A rotary shaft 4 having an excavating blade 7 on the tip and a stirring wing 8 on the outer wall is inserted into a revolving cylinder 1 having an excavating blade 2 on the tip and a stirring wing 3 on the inner wall. Then, after supplying the hardening agent as well as excavating the hole for piling by the revolving cylinder 1 and the rotary shaft 4 rotating in opposite directions, it is mixed with the excavated earth and sand equally. And, the rotary shaft 4 and the revolving cylinder 1 are drawn out, and hardened after inserting the reinforcing materials into the mixing section. According to this method, the piles can be driven without making any vibration, noise and waste earth.
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