The high-speed rail networks are engineered to enable rapid and effective transit. They are expected to be fully functional even during adverse operational conditions such as heavy rain, fluctuating water level, and the dynamic nature of external loadings. However, several case histories and recent research development exhibited the limitations of the effectiveness of embankment stability confronted with severe and prolonged precipitation and adverse saturated subsoil conditions. Besides, the mechanism of shear reinforcement and the effects of soil–water characteristics on the dynamic stability of embankment needs to be better understood. Therefore, conducting dynamic analyses for high-speed railways (HSR) considering fluctuating saturated subsoil conditions is vital for railway embankment’s structural robustness and operational serviceability. The presented study focuses on the dynamic analysis of an HSR embankment, considering the intricate interaction between pore pressure dynamics and associated deformations. The embankment positioned alongside the railway track is subjected to varying levels of precipitation and groundwater exposure. The analysis commences with a gravitational assessment, probing the embankment's behavior under the influence of both elastic and plastic properties inherent to the constituent soil layers. Employing a 2D dynamic inelastic framework, the study rigorously integrates the reciprocal influence of pore-pressure dynamics and deformation effects. This sophisticated analysis methodology leverages the OPENSEES framework. Implications of interaction between the degree and extent of saturation in the subsoil and associated embankment deformation are also discussed.

高速铁路网络的设计旨在实现快速有效的交通。即使在大雨、水位波动和外部负载的动态性质等不利的操作条件下，它们也有望完全发挥作用。然而，一些案例和最近的研究进展表明，在严重且长期的降水和不利的饱和地基土条件下，路堤稳定性的有效性存在局限性。此外，还需要更好地了解抗剪加固机理以及土水特性对路堤动力稳定性的影响。因此，考虑波动的饱和地基条件对高速铁路（HSR）进行动态分析对于铁路路基的结构稳健性和运行适用性至关重要。本研究重点关注高铁路堤的动态分析，考虑孔隙压力动态与相关变形之间复杂的相互作用。铁路沿线的路堤受到不同程度的降水和地下水暴露。分析从重力评估开始，探讨路堤在组成土层固有的弹性和塑性特性的影响下的行为。该研究采用二维动态非弹性框架，严格整合了孔隙压力动力学和变形效应的相互影响。这种复杂的分析方法利用了 OPENSEES 框架。还讨论了底土饱和程度和范围与相关路堤变形之间相互作用的影响。