| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a foundation floor slab made of precast concrete, which bears a structure of a heavier load than a conventional floor slab bears, at the same time effectively prevents settlement of the structure to the possible extent, and facilitates manufacturing and mounting thereof, and to provide a method of mounting the foundation floor slab. Ž<P>SOLUTION: In mounting the foundation floor slab, a floor slab body 1a of the foundation floor slab 1 made of precast concrete is formed into a laterally long columnar shape, and a bottom surface 1e of the body is formed of two inclined surfaces 1f, 1f into a V-shape, so as to be inclined at 45 degrees from a lengthwise center to both side surfaces. Further the floor slab has overhanging pieces 1b formed at both edges of the floor slab body 1a in a manner protruding in a direction that crosses the floor slab body. Then a bottom surface 1j of each overhanging piece 1b is formed into an inclined surface 1k inclined at 45 degrees toward the floor slab body. Herein the foundation floor slabs 1 made of precast concrete are arranged side by side on foundation ground, and end faces of the overhanging pieces adjacent to each other are butted against each other, followed by connecting the overhanging pieces butted against each other, to each other in one body by a connecting means. Thereafter a space portion defined between the mutually adjacent foundation floor slabs is filled with infilling crushed stones, and then rolling is carried out. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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