Framework of a non linear fully coupled thermohydromechanical behavior of unsaturated porous media

The set of fully coupled governing differential equations of thermo-hydro-mechanical behavior of unsaturated porous media is presented. In this new development, heat and moisture transfer equations in an alternative from based on water and air pore pressures are presented. the effects of deformations on the temperature and suction distribution in soil skeleton and the inverse effects are included in the formulation via a new temperature-dependent formulation of state surfaces of void ratio and degree of saturation.