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.

本文探讨了蒙脱石和高岭石的比例以及固结时间对黏土小应变剪切模量和阻尼比的影响。将共振柱装置应用于自由振动柱测试。在0.001％的小剪切应变下，当MK比从0.25增加到4时，剪切模量和阻尼比分别增加了57％和105％。在MK比更高时，最大剪切模量随着固结时间和速率的增加而增大。然后变得稳定。相反，在较高的MK比下，阻尼比随着剪切应变而增加得更慢。在大于0.01％的剪切应变下，发现阻尼比与MK比呈负相关。