| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To further improve the durability of a steel material foundation which supports an upper structure. <P>SOLUTION: A water-proof structure 4 is provided ranging from the upper end of a steel material foundation 2 to the lower end of a foundation slab 1. Thus, the entry of water from a ground Y to the side of the foundation slab 1 is surely prevented, and the entry of water from the outside through the upper face of the foundation slab 1 to the side of the steel material foundation 2 is eliminated to improve the durability of the steel material foundation 2. The entry of water staying on a ground surface X to the side of the steel material foundation 2 is also prevented by the water-proof structure 4. Even when the water staying on the ground surface X runs over the water-proof structure 4 and enters to the side of the steel material foundation 2, the entry of water to the side of the steel material foundation 2 is prevented by an equivalent that an upper end face 1a of the foundation slab 1 is higher than the ground surface X, because the upper end face 1a of the foundation slab 1 is set at a position higher than the ground surface X. <P>COPYRIGHT: (C)2013,JPO&INPIT</p> |
