ABSTRACT

The mathematical model for the stress-strain, moisture and temperature fields exchange of the systems «building-ground» behaviour predictions in cryolitho-zone are presented. The thermal-physical processes parameters influence on the stress-strain state evolution is accounted with the pore ice content, which is function of ground temperature, its type and salination. We considered rods, plates, shells and massive elements as buildings components. Ground is described by the theory of viscous-plasticity with micro-deformations and micro-damageions and non-spherical water densities break at freezing temperature, which correspondence to the heat gradient direction. Quantitative forecasting of physical parameter formations achieved due to finite elements method using for models equations solving. The examples of thermal-mechanical behaviour prediction for superficial and underground structures are presented