EFFECTS OF SUCTION ON SHEAR STRENGTH AND DEFORMATION OF UNSATURATED SAND IN TRIAXIAL COMPRESSION AND EXTENSION TEST

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  • 三軸試験時の不飽和砂の変形強度特性に与えるサクションの影響に関する基礎的研究
  • 3ジク シケンジ ノ フホウワ サ ノ ヘンケイ キョウド トクセイ ニ アタエル サクション ノ エイキョウ ニ カンスル キソテキ ケンキュウ

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Abstract

Triaxial compression and extension tests were carried out on unsaturated Toyoura sand specimen under constant confining net stress and suction. The obtained data were exaimined, and compared with the observed behavior in triaxial test of unsaturated clay specimen. The similar effects of suction for the clay specimen were confirmed for the trixial compression test results, but not for the triaxial extension test results. From the discussion of the micro scale mechanism concerning to the soil water distribution, it is deduced that the effect of deformation mode has influence on these observed behaviors.

Journal

  • Doboku Gakkai Ronbunshu

    Doboku Gakkai Ronbunshu 2005 (785), 785_93-785_106, 2005

    Japan Society of Civil Engineers

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