凍土に及ぼす未凍結土内の動水抵抗の影響（特に応力の小さい場合）

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書誌事項

タイトル別名
  • Influence of Permeability of Unfrozen Soil on Frost Heave
  • トウジョウ ニ オヨボス ミ トウケツドナイ ノ ドウスイ テイコウ ノ エイ

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抄録

In their previous paper (Takashi et al., 1974) the authors of this paper induced an empirical formula of the frost heave ratio under open system, in which the frost heave ratio is inversely proportional to the effective stress (acting perpendicular to the freezing front) and to the square root of penetration rate of freezing. This formula gives good agreement with the experiment in the wide range of large stress, but the agreement is not good in the range of small stress (σ<1kg/cm2).<BR>The authors ascribe this behaviour to the increment of effective stress arising from the resistance of water movement drawn to the freezing front from unfrozen region. The results obtained theoretically in this paper has very good agreement with the experiment. Therefore, if only the resistance of water movement in unfrozen soil is zero or very small, the formula is correct in the range of relatively small stress.

収録刊行物

  • 雪氷

    雪氷 38 (1), 1-10, 1976

    公益社団法人 日本雪氷学会

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