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発表 Numerical simulations of rockfall protection retaining wall joined to steel-pile foundation

作成年度 2011年度
論文名 Numerical simulations of rockfall protection retaining wall joined to steel-pile foundation
論文名(和訳) 鋼管杭を用いた杭付落石防護擁壁の数値解析シミュレーション
論文副題
発表会 第3回 国際ワークショップ PROTECT2011
誌名(No./号数)
発表年月日 2011/08/29 ~ 2011/09/01
所属研究室/機関名 著者名(英名)
寒地構造チーム山口 悟(YAMAGUCHI Satoru)
寒地構造チーム西 弘明(NISHI Hiroaki)
寒地構造チーム今野 久志(KONNO Hisashi)
寒地構造チーム表 真也(OMOTE Shinya)
室蘭工業大学岸 徳光(KISHI Norimitsu)
室蘭工業大学大学院牛渡 裕二(USHIWATARI Yuji)
抄録
In Japan、 many rockfall protection walls have been constructed along the national highways in mountainous areas. Up till now、 usually these were gravity-type walls. However、 if here is not much space between the wall and the edge of the cliff、 it may not be easy to construct a normal type of wall. To rationally install the wall in these areas、 a retaining wall connected to a steel pile foundation attached to a two-layer absorbing system was recently developed. Here、 in order to establish a rational design for this type of retaining wall、 an impact response analysis was performed by means of three-dimensional elasto-plastic FE analysis. The two-layer absorbing system used here is composed of a 15 cm thick reinforced concrete slab together with a 50 cm thick expanded polystyrene (EPS) block. The retaining wall is connected to the steel piles by inserting H-section steel members embedded in the wall. The applicability of the proposed FE analysis method was verified by comparing with the prototype impact test results.
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