PERFORMANCE OF REINFORCED EMBANKMENT ON MUAR CLAY DEPOSIT

ABSTRACT The finite element method has been used to analyze two geogrid reinforced embankments on Muar clay deposit in Malaysia. One embankment is with a berm and the other is without a berm. In finite element modelling, two different soil/reinforcement interaction modes, i.e. direct shear and pullout have been considered. The large deformation phenomenon has been also approximately simulated. Comparing the finite element results with the field data in terms of excess pore pressures, settlements, and lateral displacements, the performance of the stage constructed reinforced embankment can be systematically simulated using the finite element method. The reinforcement tension force and soil/reinforcement shear stress mobilization process and distribution pattern, the soil/reinforcement interaction mode (direct shear or pullout), and the effect of reinforcement on embankment stability are also analyzed.