The paper describes two different procedures to explain and to model the observed heave of a nuclear power plant founded on an expansive unsaturated claystone. In the initial model developed. the claystone was represented by a double structure (micro-macro) expansive clay. Field swelling records were accurately reproduced and the model was used to predict the long-term (40 yr) expecte... https://www.maximilianopellegrini.com/product-category/hudpleje/