Dynamic Properties of Saturated Clay and Undisturbed Silty Clay
NIE Ying ,XIAO Qi hua and LIANG Yi cong
DOI:10.11835/j.issn.1674-4764.2008.06.014
Received ,Revised , Accepted , Available online July 01, 2015
Volume ,2008,Pages 66-71
- Abstract
The apparatus for static and dynamic universal triaxial and torsional shear soil testing was employed to perform stress-controlled cyclic torsional shear testing under isotropic consolidated conditions. We conducted a dynamic torsion test of a single hollow sample to obtain its dynamic property data at different effective confining pressures with saturated clay and disturbed silty clay. The results show that the maximum dynamic shear modulus Gmax and ξ obtained from single sample of the cyclic shear test approached those of the traditional method of dynamic torsional testing. We indicate that G/Gmax～ γ andξ/ξmax ～γ of the two soils are independent of confining pressure and testing methods. Each G and ξ can be obtained from the equations we provide. Furthermore, the single sample test method can diminish the differences between the samples during experimentation and effectively provide convenience with authentic experimental results.