This study aims at clarifying the effect of embedment of cellular bulkheads on the seismic stability by using the two-dimensional earthquake response analyses. We classified the deformation of cellular bulkheads into two portions: deformation in the foundation ground and the deformation by the inclination of the wall body. We found that deformation in the foundation ground is reduced and that by the inclination of the wall body is increased in accordance with the embedded length. We discussed the reason by observing the shear stress and the shear strength of the ground. We also found that the deformation mechanism was not necessarily in harmony with that by the present design code from the viewpoint of the effect of embedment
