ANALYSIS AND COMPARISON OF SUCTION AND DISPLACEMENT OF BUFFER LAYER IN NUCLEAR WASTE DISPOSAL REPOSITORY UNDER DIFFERENT COUPLING FORMS

Based on the experiment data of the in-situ test of FEBEX,the CODE-BRIGHT is used to simulate the near field of nuclear waste repository and to investigates the change rule of suction and displacement in different coupling forms of Thermo-hydro-mechanical. After comparing the suction and displacement in these coupling forms, we can analyze the main factors that are to influence them. The results can show the character of buffer layer of nuclear waste disposal repository and provides a suitable and simple coupling form for the calculation of project.