This paper deals with six cases of shaking table tests on geosynthetics reinforced earth walls, in which reinforcement length, embankment height, wall surface gradient, wall surface rigidity and input seismic wave were varied. And the test results were compared with the results of pseudo-static analyses. The following results were obtained.
(1) The slip surface, in case of the partition-type wall, came out from the outer area to the lower layer of the reinforced zone. Under additional vibration, the whole reinforced zone worked as an integrated body and moved toward the front side with the rear portion transformed into a wedge shape. In case of the integrated wall, as the deformation of the wall was restricted, large bend occured at the upper tip.
(2) In case of the partition-type wall, the earth pressure and the reinforcement tension were larger at lower or nearer to the wall surface. In case of the integrated wall, both of these values were smaller compared to those of the partition-type.
(3) The earth pressure at the rear of the reinforced zone, the peak occurred twice in one cycle in case of large accelerated vibration.
(4) From the results of the comparative studies with the pseudo-static analyses, the present design method had a certain degree of tolerance for safety against total collapse. When restoration is not required, the importance of the setting of safety factor for the limit usable deformed state was pointed out.
(5) For the reinforcement tension distribution, the design value was larger than the observed one at the upper portion of the embankment, but on the lower portion, the opposite tendency was obtained with the mid portion occurring as a borderline.