The effects of frequencies on the model anchored sheet-pile wall on a shaking table were investigated experimentally in the frequency range 1 to 100 cps. The model was constructed of the dry sand layer and the model anchored wall which was designed so as to be similar to the prototype wall concerning the deflection and the mass distribution. Summeries of the results of experiments are shown below.
　The phenomenon of resonance is observed when the resonance frequencies of sand layer almost coincide with the frequencies of driving vibrations. And as the intensity of driving vibration increases, both the resonance frequencies and the acceleration response ratio of the model show the decreasing tendency. At the resonance, the bending moment above the dredge level becomes the maximum value, but the degree of fixity below the dredge level is not so much changed. And also, though the acceleration in the sand layer becomes the very high value at the resonance, the earthpressure during vibration acting on the wall is not larger than the value calculated from the Mononobe-Okabe formula. The amplitude of the tie-rod tension is closely realated to the acceleration in the sand layer.