Snitsar M. Justification of the geotechnical stability of the array swelling soil in hydrothermal conditions

Dissertation is devoted to experimental and theoretical study of deformation properties of swelling soil in hydrothermal conditions. It was obtained changes in physical & mechanical and deformation & rheological parameters of swelling soils during wetting with hydrothermal water at temperature T=40...80 °C, and these parameters were compared with values obtained during wetting with hydrothermal water at temperature T=18...20 °C. It was found that the swelling deformation of hydrothermal wetting at T=40...80 °C is higher than the deformations of wetting at T=18...20 °C in 1.2-1.52 times. It was also found that during water wetting at temperature T=40...80 °C a swelling trajectory array surface can be described as a square parabola under free swelling when the sealing pressure is , i.e. there are no external loads. This form of swelling is the most dangerous, while ensuring sustainability and carrying capacity of structures built on an array of swelling soils.