Abstract
Two kinds of specimens of non-plastic silt were prepared by different methods (the one, tamping and the other, air-pluviation) to investigate the liquefaction and post-liquefaction characteristics. The former was intended to simulate artificially-made fills, and the latter was to reproduce pluviation of deposits. These specimens were used in cyclic triaxial tests to make clear liquefaction and post-liquefaction characteristics of non-plastic silt. A special attention was paid to post-liquefaction permanent deformation. Based on the results from cyclic triaxial tests, a modeling was made for formulation of post-cyclic shear strain taking into consideration the degradation characteristics in modulus of deformation after cyclic loading history.
