Fig. 3. Preconsolidation stress plotted as a function of the 
parameter derived from fitting Eq. [3] to 119 sets of soil-compression data. The smooth line is the nonlinear regression curve based on Eq. [4]
Fig. 3. Preconsolidation stress plotted as a function of the parameter derived from fitting Eq. [3] to 119 sets of soil-compression data. The smooth line is the nonlinear regression curve based on Eq. [4]