Numerical modeling of the attenuation of Rayleigh surface waves by a pile barrier
DOI:
https://doi.org/10.55287/22275398_2026_58_121Keywords:
Rayleigh surface waves, pile barrier, numerical modeling, wave screening, finite element modeling, vibration protection, seismic protection, geotechnics, density contrastAbstract
This paper presents a numerical simulation of the attenuation of Rayleigh surface waves by a localized pile barrier in a linear elastic medium. The simulation was performed in a quasi-three-dimensional formulation using the SIMULIA Abaqus software package and explicit time integration methods for the equations of motion. Cases with different pile material densities and unchanged elastic properties were considered, which made it possible to assess the effect of density contrast on the wave field propagation pattern. The analysis was carried out using time histories of vertical displacements at a control point and spatial distributions of displacement magnitude in the near-surface zone. It was found that the presence of a pile barrier leads to a reduction in vibration amplitude in the region behind the obstacle and causes a phase delay of the signal compared with a homogeneous medium. It is shown that a heavy pile predominantly acts as a reflecting element, forming an interference zone in front of the barrier, whereas a light pile provides more pronounced attenuation due to wave energy trapping, scattering, and re-radiation. It is concluded that a pile with a lower density relative to the surrounding medium is more effective for vibration and seismic protection of soils, foundations, and equipment.
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