| 摘要 |
PROBLEM TO BE SOLVED: To provide a pile structure obtained by improving a prefabricated pile such as a steel pile, a concrete pile and a steel/concrete combination pile, which has a large ground bearing force, a pile member constituting the pile structure, and a pile member driving method. SOLUTION: The pile structure includes a bag body wound around the outer circumference of the pile member, and preferably, a spiral bag body, a grid pattern bag body or a slanting bag body is used as the bag body. The bag body is embedded underground without filling a solidifying agent in the bag body. The bag body is expanded around the outer circumference of the pile member by the solidifying agent filled in the bag body after the bag body is embedded underground to form protrusions/recesses on the outer circumference of the pile member. The pile member constituting the pile structure and the pile member driving method are also disclosed. COPYRIGHT: (C)2008,JPO&INPIT
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