96 Figure 7 – Degree of Saturation and Pore Water Pressure in the Saturated-Unsaturated Model (external face uncovered during wet season) Figure 8 – Degree of Saturation and Pore Water Pressure in the Saturated-Unsaturated Model (external face covered during wet season) It can be observed that the negative pore water pressures generated in the model reach a maximum suction value of approximately -2200 kPa at the end of the FTD operational stage. This suction governs the variation in the degree of saturation according to the SWCC of the materials, thereby allowing this transition to be captured in the model.
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