1995 Volume 9 Issue 3 Pages 188-201
The phenomenon of liquefaction is one of the most important subjects in earthquake engineering. After introducing the general description on the liquefaction phenomenon, computer algorithms for liquefaction analyses of fluid-saturated grounds are summarized which use finite element and finite difference coupled numerical methods; the accuracy of several numerical methods are then addressed through comparisons of the analytical solutions and the experimental data as well as observed ground motions during the 1995 Hyogo-ken Nanbu earthquake. To estimate large ground displacement during and after the liquefaction occurrence a typical stress-strain relationship of sand after onset of liquefaction is discussed using the data obtained by torsional shear tests under several conditions.
