| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a pile foundation construction method and a pile foundation structure that can omit oblique cutting of a guide tube of high difficulty, and also achieves cutting and removal of the guide tube without damaging a surface periphery of a projecting structure of the guide tube. <P>SOLUTION: The pile foundation construction method is to construct a structure on the foundation by driving piles, a structure 11A includes a guide tube 30a which is arranged penetrating the structure and projecting upward from a partial surface of the structure, and an external tube 31 which has a larger diameter and a shorter length than the guide tube, and is arranged in the structure such that an upper end 31a cut conforming to the partial surface of the structure is along the partial surface. The method includes the processes of: driving a pile 29a through the guide tube after installing the structure on the foundation; and cutting the guide tube at a part T where the guide tube and external tube are doubled, and removing an upper-end part of the guide tube projecting from the partial surface of the structure. <P>COPYRIGHT: (C)2013,JPO&INPIT</p> |
