Abstract
A finite element model combined to the thin layer method is used to model ground wave propagation in the frequency domain. This coupled model allows the waves to transmit through the lateral boundaries of the computational domain so that it simulates the semi-infinite extent of the medium. Unstructured triangular mesh grids are used in the model allowing consideration of complicated geometries involved in such problems. The efficiency of this approach is first assessed against known analytical models. Then the effectiveness of various shaped wave barriers in reducing surface ground vibration is examined. Last, examples of ground vibration due to railway loading are presented including a conventional railway embankment and highly compacted geomaterials embankment with vertical Retaining Walls.
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