EFFECT OF FABRIC ANISOTROPY ON QUASI-ELASTIC MODULUS OF SAND AND CLAY

To examine the effect of the fabric anisotropy of sand and clay on the quasi-elastic modulus, the shear wave velocity in three different directions was measured by the bender element method on specimens with different fabric anisotropy. In addition, the Young's modulus was measured by cyclic tr...

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Bibliographic Details
Published inDoboku Gakkai Ronbunshuu C Vol. 62; no. 1; pp. 97 - 109
Main Authors HORI, Tomohito, YAMASHITA, Satoshi, YAMAGUCHI, Takeshi, SUZUKI, Teruyuki
Format Journal Article
LanguageJapanese
Published Japan Society of Civil Engineers 2006
Subjects
bender elements test
clay
fabric anisotropy
quasi-elastic stiffness
sand
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Summary:To examine the effect of the fabric anisotropy of sand and clay on the quasi-elastic modulus, the shear wave velocity in three different directions was measured by the bender element method on specimens with different fabric anisotropy. In addition, the Young's modulus was measured by cyclic triaxial test on small strain and monotonic loading test. Test results showed that; 1) the initial shear modulus obtained from the shear wave for propagating and vibrating parallel to the bedding plane is higher than the other two kinds of moduli, 2) the Young's modulus in the horizontal direction, Eh, is higher than that in the vertical direction, Ev, 3)the anisotropy of elastic modulus in NSF clay is more considerable than that in Toyoura sand in this study.
ISSN:1880-604X
DOI:10.2208/jscejc.62.97