Non-isothermal soil-structure interface model based on critical state theory

In energy geostructures, the soil-structure interface is subjected to thermo-mechanical loads. this study, a non-isothermal model based on critical state theory developed from granular constitutive under isothermal conditions. The capable of capturing effect temperature sand/clay-structure interfaces constant normal load and stiffness First, was verified for sand-structure in Then, it calibrated clay-structure On one hand, well-defined peak shear stress and, other void ratio were captured reproduced by model. importance thickness determination some differences between thicknesses are discussed detail. additional parameters have physical meanings can be determined laboratory tests. modeling predictions good agreement with experimental results, main trends properly reproduced.