Thermo coupled elastoplastic-viscoplastic solutions for compaction process in sedimentary basins

Resumo

This work presents semianalytical solutions for the deformation induced by gravitational compaction in
sedimentary basins. Formulated within the framework of thermo coupled plasticity–viscoplasticity at large strains,
the modeling dedicates special emphasis to the effects of material densification associated with large irreversible
porosity changes on the stiffness and hardening of the sediment material. The analysis is restricted to the fully

drained setting in which excess pore-pressures are disregarded. In addition, the thermal problem is posed, for-
mulating the thermal field with constant parameters. These solutions can be viewed as reference solutions for

verification and benchmarks of basin simulators.