Stability analysis of a slurry deposited dike

Studied here in terms of both a rotational failure and a flow analysis is the stability of such a dike for the disposal of bauxite residue or red mud from aluminum production. In general, the flow analysis has been found to be less critical than the rotational failure analysis, but both indicate that very low dike slope angles will be required for stability. One technique for building a stable dike is to superpose slurry layers incrementally by allowing adequate time for each layer to desiccate and gain strength before depositing a successive layer, and calculations have been made to suggest a reasonable compromise between layer thickness and drying time to accomplish this goal.