After a consolidation analysis I have excess pore pressures in "drained" material sets. Why?

ApplicationPLAXIS 2D
VersionPLAXIS 2D
Date created24 April 2013
Date modified24 April 2013

The material type setting Drained, Undrained A and Undrained B refers to a plastic, dynamics and phi/c reduction analysis. In consolidation analysis the material type is ignored for the types Drained, Undrained A and Undrained B, and the actual specified permeabilities are used. Therefore a "drained" material set can show excess pore pressures during or at the end of a consolidation phase.