EXPERIMENTAL CONFIRMATION OF THE COEFFICIENT OF FRICTION BETWEEN RUBBLE FOUNDATION AND A CAISSON

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  • Kaji Sokichi
    THE JAPAN SOCIETY OF CIVIL ENGINEERS
  • Gotoh Teiji
    コスモエンジニアリング (株) 四日市事業所 プロジェクト部 前: 白島石油備蓄 (株) 北九州事業所
  • Takimoto Takaya
    THE JAPAN SOCIETY OF CIVIL ENGINEERS

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Other Title
  • 基礎捨石とケーソンの摩擦係数確認実験
  • キソ ステイシ ト ケーソン ノ マサツ ケイスウ カクニン ジッケン

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Description

At Shirashima Petroleum Storage Base rubble is used in the foundation mound for a caisson type breakwater. The resistance of the caisson breakwater against waves is expected to be the frictional force between the bottom slab of caisson and the rubble mound foundation. In the design a value of μ=0.6 was used for the coefficient of friction. Laboratory experiments were conducted so that an identical value could be guaranteed with the same grading method as used on site. The results of the experiments give, μ=0.66 as the average maximum coefficient of friction.

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