Abstract
In this research, a comparative study is done on the effectiveness of reinforcement in embankment ground. The restraint effect of ground displacement by reinforcement of sheet pile and the sheet pile combined with the nailing method are investigated by model tests and corresponding finite element analyses. An elastoplastic model and subloading tij model are used in the analyses. Two loading conditions were applied namely, the simple vertical loading to the footing and cyclic loading associated with repeated shear deformation in the ground for both series of the model tests and the finite element analyses. Soil-water coupling analysis applying an inertial force to real ground embankment is also performed. It is revealed that when the bearing capacity of the ground increases, the lateral and vertical displacements are restrained. The reinforcement by the sheet pile combined with the nailing method is effective compared with that of the sheet pile alone.
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