Abstract
Delayed failure of lightly/heavily overconsolidated soil due to swelling has been investigated through the soilwater coupled finite deformation computation. Here, the failure after excavation in an overconsolidated clayey ground and the seepage failure of laboratory model ground on dense sand are simulated under plane strain conditions.
In both examples, the ground exhibited progressive failure with fluctuating deformation rates under constant loading. This progression of failure is attributed to softening due to swelling of the soil itselfin the localized area and pore water inflow at varying rates to the soil elements in the zone.
