The assessment of the rate of coastal erosion in towns and settlements is conducted based on data obtained from long-term observations and measurements of shoreline retreat. A variety of mathematical and statistical approaches are employed for this purpose. To eliminate costly dredging operations, regular remote monitoring of the state of the shores is required in shipping and fishing areas, along with measures to strengthen eroding sections. The article presents modern constructive and technological solutions using deep-embedded pile elements (such as pile groynes, end-widening piles, etc.), which demonstrate high effectiveness in several aspects: increasing bearing capacity and stability, durability and resistance to erosion, as well as economic and ecological efficiency and applicability in complex soil conditions. A method has been developed to determine settlement based on the areas of spherical widening of the pile, taking into account the pressure distribution law beneath the sphere. An axisymmetric problem is presented to determine the stress in the soil at the contact boundary with the reinforcement and the settlement of the entire pile. The method allows for the calculation of the load on an infinitesimal area dp, located at a distance S from point C in the plan of the contact force circle of the sphere-widening under vertical loading and infinitely close secants.