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PROCEEDINGS OF JAPAN EARTHQUAKE ENGINEERING SYMPOSIUM
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Kouki ZEN, Yasufumi UMEHARA, Kouji HAMADA
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LABORATORY TESTS AND IN-SITU SEISMIC SURVEY ON VIBRATORY SHEAR MODULUS OF CLAYEY SOILS WITH VARIOUS PLASTICITIES
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The effects of the plastic index on the shear moduli of clayey soils were investigated in a resonant column device and a dynamic triaxial test apparatus. It was found that the plastic index affects the low amplitude shear modulus, stress-strain curve and secondary increase in shear modulus. The laboratory. test results were compared with the results obtained from in-situ seismic. survey. The differences of both test results were observed and were discussed.
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