Fig. 8: Numerical model of the Brumadinho tailings and Feijão dam.
From: The slip surface mechanism of delayed failure of the Brumadinho tailings dam in 2019
a Layout of raisings and layering feature of tailings. b Mesh structure used in the numerical modelling. c Strain-controlled tailings softening of frictional angle. d Strain-controlled tailings softening of undrained strength. e The generalised Maxwell model with softening plasticity (the viscoelasticity is governed by the spring-dashpot system with spring and dashpot controlling elasticity and creep, respectively).
