The settlement caused by shear displacement by embankment load on soft ground was estimated by the difference between the settlement curve analyzed by Curve fitting method and the settlement curve measured in the field, and the degree of consolidation, final settlement resulted from Curve fitting considering gradual step loading, Asaoka and Hyperbolic methods were compared to find out the strength and weakness, and the following were concluded.
The settlement estimated by not considering shear displacement was overestimated and the rate of consolidation was estimated faster than the measured data.
The curve fitting method of separating shear displacement using data measured in low embankment was consistent with the result of other verification.
The hyperbolic method and Asaoka method should be used only to the data measued after a little time elapsed because shear displacement takes place during upto a little time after over the embankment.
It was known that the settlement estimate by hyperbolic method was larger than that by other method, but the settlement by hyperbolic method was smaller than that by Curve fitting method when shear displacement was significant.
It was known that the Asaoka method was reliable, but the Asaoka method should be adopted because it is possible that the method cause numerical error.