Suffusion and Subsidence Deformations of Pulverized Clay Soils of Various Types and Degrees of Salinity Under Anthropogenic Influence

Suffosion and subsidence deformations of dusty-clayey soils of various types and degrees of salinity (GDCS) must be taken into account when predicting the settlement of structures designed on such soils, which are subject during operation to flooding and filtration effects of anthropogenic (aggressive) waters. These suffosion and subsidence settlements will continue until the salts are completely leached from the foundation soils or until hydrogeochemical equilibrium is established within the base. Under current conditions, characterized by widespread and intensive changes in the chemical composition and concentration of groundwater (technogenic waters) in urbanized areas, it is unrealistic to expect hydrogeochemical equilibrium in the foundation of a projected facility to be maintained throughout its entire operational lifetime. Therefore, to ensure the reliable and long-term performance of structures on GDCS, it is necessary – already at the design stage – to anticipate the development of maximum settlement corresponding to the stabilization of subsidence and suffosion deformations caused by the removal of easily, moderately, and poorly soluble salts from the foundation soils under anthropogenic influence. It is also essential to incorporate preventive anti-suffosion structural, technological, or engineering solutions at the construction stage