| 摘要 |
PURPOSE:To improve a resisting force for sliding and a supporting force for ground, by driving a penetration member into foundation ground through an opening section after a retaining wall for a corner section is set on the foundation ground, and by integrally forming the retaining wall for a corner and the penetration member. CONSTITUTION:A retaining wall A for a corner section with an opening section 1a formed on a bottom board 1 is set on foundation ground B. Then, the opening section 1a may be formed at a plurality of positions vertically on the bottom board 1, but a penetration member 2 is driven into the opening section in a long slot shape so that the head of the member 2 may be on the level same as that of the upper surface of the bottom board 1. The penetration member 2 works effectively as it is penetrated deeper, and so the depth is determined by adjusting earth pressure between the retaining wall A for a corner section and the retaining wall for a straight line section. As the result, by adjusting the form and dimension of the opening section and the depth of penetration, the safety degree for sliding and supporting ground can be optically enhanced.
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