Finite element analysis of reinforced embankment foundation

A finite element analysis of a reinforced embankment-foundation system has been conducted using a coupled formulation and elastoplasticity theory. Suc h important factors as type of reinforcement, the type of clay, depth of fo undation and drainage condition affecting the system have been systematical ly investigated using appropriate constitutive models to depict various com ponents of the system and material parameters of two typical soft clay depo sits found in India The displacements, reinforcement force and maximum heig hts of the embankments are among the aspects presented and discussed. It is shown that the effectiveness of the reinforcement is dependent on its stif fness and the shear strength of the clay deposit. The foundation depth has significant effect on the nature and magnitude of displacement, the reinfor cement force and the height of embankment. Drainage conditions are shown to markedly influence the effectiveness of reinforcement. Copyright (C) 1999 John Wiley & Sons, Ltd.