| 摘要 |
PROBLEM TO BE SOLVED: To provide a liquefaction restraining structure capable of being achieved in a small sized plot of a building at low cost.SOLUTION: Steel plate underground barriers 2 are formed so as to surround the periphery of an area in which a building is constructed. Each of the steel plate underground barriers is vertically pressed into the ground such that adjacent steel plate members of a plurality of steel plate members having a prescribed horizontal size and embedded up to a prescribed depth are connected with each other at side edges thereof and the barriers become a closed form when viewed from the above. In an upper part of the steel plate underground barriers, a steel shield plate 3 covering all of the area surrounded by the steel plate underground barriers or an area except a part or all of the region immediately below a region in which a foundation 1a of the building is formed substantially horizontally is connected, and the steel shield plate 3 is embedded at a predetermined depth from the ground surface. Otherwise, steel piles 4 may be pressed into the ground along the steel plate underground barriers at predetermined intervals in the horizontal direction. The steel pipes are pressed into the ground to a position deeper than the depth reached by the steel plate members. |
