Effects of Clay Minerals on Small-Strain Shear Modulus and Damping Ratio of Saturated Clay

被引：0
作者：
Peng Lin
Jun-Jun Ni
Ankit Garg
Shu-Man Yu
机构：
[1] Shantou University,Department of Civil and Environmental Engineering
[2] the Hong Kong University of Science and Technology,Department of Civil and Environmental Engineering
来源：
Soil Mechanics and Foundation Engineering | 2020年 / 57卷
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摘要：
This paper explored the impacts of montmorillonite and kaolinite (M-K) ratio as well as consolidation time on small-strain shear modulus and damping ratio of clay soils. A resonant column device was applied to the free vibration column tests. At small shear strain of 0.001%, the shear modulus and damping ratio increased by 57% and 105% respectively when the M-K ratio rose from 0.25 to 4. At higher M-K ratio, the maximum shear modulus grew at a larger rate with consolidation time and then became stable. In contrast, the damping ratio increased more slowly with shear strain at higher M-K ratio. Under a shear strain larger than 0.01%, a negative correlation of the damping ratio with the M-K ratio was found.
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页码：105 / 109
页数：4
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