WITHDRAWN: An experimental study on the effects of moisture content and confining pressure on the damping ratio of silty clay

Abstract

The damping ratio is a crucial dynamic parameter in soil. In order to study the damping ratio characteristics of silty clay, dynamic triaxial tests were conducted. Two influencing factors, moisture content and confining pressure, were considered, and the specific effects and sensitivities of changes in these factors on the damping ratio were discussed in detail. The research results indicate that an increase in moisture content leads to an increase in the damping ratio of silty clay, while an increase in confining pressure results in a decrease in the damping ratio. The relationship curve between the damping ratio and dynamic shear strain (λ–γd) demonstrates distinct phase characteristics. Furthermore, the sensitivity of the damping ratio to moisture content is generally higher than its sensitivity to confining pressure, with significant differences in sensitivity observed across different phases. This study uncovers the complex influence of moisture content and confining pressure on the mechanical properties of silty clay, providing an important reference for a deeper understanding of its behavior in various conditions.