Analysis of the impact of hydrodynamic factors on coastal railway structures

The analysis of the surrounding coastal relief of the North Caucasus Railway section, which is promising in terms of high-speed traffic development, and the coastal protection structures traditionally used on this section was carried out, and a three-dimensional map of the sailing directions near the section under study was constructed. A computer experiment was carried out using numerical modeling tools to examine the impact of storm waves on coastal protection structures and railway track structures in areas of intense coastal storm tide impact. The intensity of the impact of hydrodynamic factors on structural elements and the indirect impact of traditional coastal protection structures on coastal erosion were estimated. Computer modeling was carried out using the smoothed particle hydrodynamics method. A map of the distribution of flow velocities and excess pressure for the incident and reflected wave was constructed using a section of the coast as an example, and numerical indicators of the impact of hydrodynamic factors on the coastal structures of the railway were obtained. The study showed the advantages of integrating these structures into the natural landscape due to a significant reduction in the impact of reflected waves on coastal erosion. A comparative analysis of the impact of the specified hydrodynamic factors on the classical and alternative designs of the substructure of the track in the coastal zone, ensuring maximum use of the natural protection of the coastline, was carried out.