鋼管杭頭部にH形鋼を併用した落石防護擁壁の重錘衝突実験
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概要
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In order to improve the construction performance and to decrease the dimensions of reinforced concrete rockfall retaining-wall with two-layered absorbing system connected with steel piled foundation, the method using H-section steel instead of steel pile for jointing them is proposed. An applicability of the proposed method and the absorbing performance of the two-layered absorbing system are investigated by conducting prototype impact test. From this study, it is confirmed that (1) this proposed retaining-wall system with two-layered absorbing system has high absorbing and impact resistant performances; (2) bending stresses caused in the H-section steels and steel piles are affected by the size of H-section steel; and (3) bending stresses developed in the steel piles can be restrained by decreasing the size of H-section steel because of the displacement of the retaining-wall being increased.
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