1019 Figure 72 – Typical SWCC chart (Fredlund et al., 2012) 3.METODOLOGY For this investigation, a typical geometry of a Filtered Tailings Deposit was considered. Figure 73 presents the main geometric assumptions of the facility, along with other considerations such as the construction timeline by layer (stacking plan). Figure 73 – Geometry for a filtered tailing deposit The main objective of this article is to demonstrate the importance of considering unsaturated behavior in this type of facility. For this purpose, two models were developed: one considering unsaturated tailings behavior, and another assuming only saturated conditions. The transient analysis was conducted using GeoStudio 2D 2024 software, specifically the SEEP/W module, which performs numerical analysis based on the finite element method (FEM). The SEEP/w module has two ways of modelling hydraulic behavior: saturated-unsaturated model and only saturated model.
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