Abstract
A method for seismic stability analysis is proposed. It was developed based on the modified Fellenius method, applying the horizontal seismic force the cyclic shear strength of clays with initial drained shear stress as the resistance force on the sliding plane. Not only safety factor but also deformation and pore pressure developed in the vicinity of sliding plane can be evaluated in the present procedure. In order to verity the proposed method a case history in which fills developed on the clay grounds were collapsed by seismic loads were simulated. It was confirmed that the safety factor and the settlement obtained by the proposed method are in good correspondence with those of practical cases.
