Abstract
A simplified procedure for evaluating the liquefaction-induced flow in the slightly inclined slope is examined. The flow failure in the slope where the ground surface and the basement are slightly inclined at the same gradient is modeled as a one-dimensional problem. Using the conventional two-dimensional liquefaction code based on the effective stress, we proposed a new procedure. This procedure can simply calculate the liquefaction-induced flow. In this procedure, the existence of the initial shear stress by the inclination of the basement is considered to be an influential factor of the ground flow. By comparing the proposed procedure with Orense's analyses and with the case studies during past earthquakes, the applicability of this procedure is evaluated.