PROBLEM TO BE SOLVED: To provide a structure of a wall body such as a tide embankment which can withstand tsunami or the like with a simple member.SOLUTION: A structure of a wall body is constituted by a group of hexagon long pole 1 and a foundation pile 2. The hexagon long pole 1 is constituted by piling up hexagon short poles 11 each of which is a hexagon in a plan view and the inside of which is penetrated in a perpendicular direction in a hollow state, in a vertical direction, and integrating the hexagon short poles 11 with a PC steel arranged in a vertical direction. An upper part of the foundation pile 2 is positioned in the hexagon long pole 1. An inside of at least a part of the hexagon long pole 1 is filled with space-filling concrete. A plurality of hexagon long poles 1 are installed in a manner that side faces of the hexagon long poles 1 contact to each other.
