Study on Equation of Shear Stress-Displacement Curves

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  • 土のせん断応力‐変位曲線表示式に関する一考察　　特にＫａｃｉｇｉｎ‐Ｇｕｓｋｏｖ式について
  • ツチ ノ センダン オウリョク ヘンイ キョクセン ヒョウジシキ ニ カンスル
  • 特に Kacigin-Gnskov 式について

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Investigating various equations which represent shear stress-displacement curves, the author found that the Kacigin-Guskov equation as follows should apply to only a limited case where fs=2, 7554 fm<br>τ/p=fm(1+a/cosh(d/Kτ))tanh(d/Kτ)<br>a=2.55(fs-fm/fm)0.825<br>Instead of Kacigin-Guskov equation the author proposed a corrected equation depend on Pokrovski equation, that is:<br>τ/p=fm×[1-√1-fm/fsed/Kτlog{1+fs/fm(√1-fm/fs-1)}/√1-fm/fs(1-2fs/fm)+2fs/fm-2]×[1-ed/Kτlog{1+fs/fm(√1-fm/fs-1)}]<br>Furthermore, the author compared both formulae by figures which were made by a XY plotter and confirmed the usefulness of the corrected equation.

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