Modeling of Sediment Flow Capacity for Designing Coastal Protection Structures on the Tuapse-Adler Section of the North Caucasus Railway

In this article, the object of research is the lithodynamic processes in the coastal zone of the sea. The problem of assessing sediment transport under the influence of storm waves is considered in order to select a method of engineering protection. The section between the Kuapse and Svirskaya rivers of the Lazarevsky district of Sochi, along which the railway line runs, is considered. Mathematical modeling of sediment flow capacity in the coastal zone was performed for this site. The research was carried out using mathematical modeling. Mathematical modeling was performed based on digital terrain models using the methods used by the authors as the basis for regulatory methods for calculating the lithodynamic characteristics of the marine coastal zone in SP 277.125800.2016. The results of calculations of the transport capacity of the water flow (capacity) of the alongshore sediment flow in the average annual section of the study area are presented. The results of modeling the transport of sediment in storms with a 2% probability are also presented. During the modeling process, the situation was studied when the full-profile wave-absorbing strip was filled with material with an average grain size of 70 mm.