Pullout capacity of circular plate anchors in NC clay

The previous studies on suction embedded plate anchor(SEPLA) were mainly in uniform clay and the installation process of the plate anchor was not considered.The pullout capacity for pre-embedded and considering installation process of circular plate anchor in normally consolidated(NC) clay has been investigated numerically using elasto-plastic large deformation finite element method.In the large deformation analysis,remeshing and interpolating technique with small strain(RITSS) model has been used.This technique allows the plate anchor to be advanced by several diameters,thus achieving steady-state conditions.It is found that the pullout capacity factors with vented base are lower than that with attached base when soil strength gradient k0.5 kPa/m.The separation condition for uniform clay is also suitable to the NC clays.The pullout capacity factors for considering installation process are lower than those for pre-embedded anchors.