Evaluating residual dyke resistance using the Random Material Point Method

Due to a lack of large deformation dyke assessment models, primary failure mechanisms, such as inner slope failure, are often used proxy assess the probability dyke. However, continues fulfil its main function unless, or until, flooding occurs. The Random Material Point Method (RMPM) is here investigate residual resistance, which resistance against after initial failure. RMPM combines random fields with MPM in Monte Carlo simulation and has been extended include effects an external hydrostatic pressure on dyke’s outer slope. idealised (computed using RMPM) shown reduce by 25% respect A lower degree anisotropy spatial variability increases resistance. simulates, expected, for larger failures and/or higher water level. ‘safe’ remaining geometry not found, since even small can result unacceptable flooding, highlighting importance modelling entire process.