| 摘要 |
The present invention relates to a screw pile and, more specifically, to a screw pile wherein an internal force reinforcing screw is fixedly inserted into a screw unit to be attached and detached to reinforce a support force as necessary. According to the present invention, the screw pile comprises: a screw unit wherein a spiral screw is twisted; an extension unit having a cylindrical shape; a coupling flange formed in an upper end of the extension unit; and a support force reinforcing fixed spiral blade having a screw shape to be coupled to the extension unit. |
