| 摘要 |
PURPOSE:To provide a subject method in which an earth moving quantity is reduced using an earth auger having a smaller diameter than that of a cylinder body for use with a pile, and a support force produced by a ground around a cylinder is improved through pressing of earth located in the proximity of the forward end of the cylinder body against a ground around the tube body by means of an earth moving means at a time when the cylinder body is inserted into a ground. CONSTITUTION:On construction of a pile, an earth moving means 2 for pressing earth located in the proximity of a forward end of a cylinder body 1 for use with a pile against a ground therearound is protruded from the forward end of the cylinder body 1 for use with a pile for securing thereto. A cylinder body 3 having perforation formed in the periphery thereof is positioned coaxially with the cylinder body 1 for use with a pile so that a toroidal space S is formed, and the toroidal space S at the forward end side of the cylinder body 1 for use with a pile is closed off with a toroidal member 4. Additionally, an earth auger 5 is located so that earth is left around and at the inside of the cylinder body 1 for use with a pile, and a nozzle 6 is attached to a forward end of a screw cylinder shaft 5. After the cylinder body 1 for use with a pile and the earth auger 5 are inserted into a ground with the rotation of them, the earth auger 5 is pulled off, and a curing material is implanted into a pull-off hole and the cylinder body 3 to construct an underground pile. |
