Effect of decreasing the dilatancy constant A o of the NTUA-Sand model on the estimated acceleration time history at a depth of 2 m and comparison with pertinent data (accelerometer 8 in Figure 10) from the centrifuge test on stabilised sand (data from Gallagher et al. (2007b)) for: (a) 2·67 times smaller A o and (b) 10 times smaller A o