Correction to: Bulletin of Engineering Geology and the Environment (2020) 79:3879–3895

https://doi.org/10.1007/s10064-020-01786-y

The original version of Fig. 7 included one incorrect image. There are two same subfigures (2b) in Fig. 7. The latter subfigure should be replace with the subfigure 2a-P. The corrected figure is included here.

Fig. 7
figure 1figure 1

SEM raw images and binary images for soil samples after different stages of centrifugation. (Specimens with densities of 1.30, 1.36, 1.46, and 1.55 g/cm3 were numbered as 1, 2, 3, and 4, respectively. Each specimen after centrifugal rotations of 0 r/min, 2200 r/min, and 8100 r/min was numbered a, b, and c, respectively. P means the pore distribution)