Pullout capacity of deeply embedded plate anchors in undrained clay

Two new simple and rigorous kinematically admissible velocity fields are constructed for deeply embedded horizontal strip and circular plate anchors respectively.Based on the velocity fields,by use of the upper theorem of plasticity,the limit pullout capacities of the strip and circular plate anchors in undrained clay are evaluated.Both the velocity fields and capacities are verified by a comparative study with the finite element solutions,which show good consistence.Besides,comparison of capacities in the present paper with the existing bounds and stress characteristic solutions shows good agreement.