| 摘要 |
PURPOSE: A construction method of a screw pile is provided to improve the end bearing capacity of a screw pile even if the screw pile is inserted into the ground only in a predetermined depth. CONSTITUTION: A construction method of a screw pile is as follows. A bored portion(4a) is formed by boring an uppermost buried layer(4) using a boring machine. A screw pile with a discharge hole(120) is inserted into the bored portion. The discharge hole of the screw pile jets air to the bored portion, and the screw pile is rotated to bore a lower layer. A grouting hole(130) of the screw pile discharges a grout solution to the bored portion to grout the bored portion, and the screw pile is inserted into a support layer. The supporting force of the support layer for supporting the inserted screw pile is reinforced. The ground is grouted, and the screw pile is inserted into a lower layer. |
