| Title |
Characteristics of Cyclic Shear Stress Ratio by Silt Content for Nak-Dong River Sand |
| Keywords |
cyclic triaxial test;Nak-Dong River silty sand;silt content;cyclic shear stress ratio;skeleton void ratio;반복삼축실험;낙동강 실트질 모래;실트함유량;반복전단응력비;skeleton 간극비 |
| Abstract |
A series of undrained cyclic triaxial tests were carried out to investigate the cyclic shear stress strength characteristics of sands with respect to the silt content. Silty sand was collected around the basin of Nak-Dong River and remolded in laboratory with the range of silt content 0~50% in sand located. As results, with the change of silt content cyclic shear stress ratio (CSR) at N=10 showed the maximum value at 5% and the minimum at 20% in all relative density. The development tendency of the pore water pressure analyzed by the relationship cyclic ratio and pore water pressure ratio is unrelated the change of CSR varying silt content. Comparing the results of the void ratio and skeleton void ratio after consolidation, CSR varying silt content was much affected by skeleton void ratio which is known to affect shear behavior of silty sand. |