| 摘要 |
According to the present invention, a defense structure for national defense comprises: a hollow structure which extends from underground or from the ground so as to protect the interior thereof from the concussive or explosive forces of shells or rockets, and which has a plurality of hollow cells each of which is defined by a cell wall and which are arranged into a preset three-dimensional pattern; a sheathing part covering the outer surface of the hollow structure; and a filler which selectively fills the hollow interiors of the cells. In the defense structure for national defense according to the present invention, since the hollow structure is made with the hollow interior having the plurality of hollow cells which are defined by cell walls, the overall weight of the defense structure is reduced and the rigidity and strength of the defense structure are maintained at a level appropriate to the reduced weight. |
