THERMO-HYDRO-MECHANICAL ANALYSIS OF THE HE-D EXPERIMENT IN MONT TERRI UNDERGROUND ROCK LABORATORY
The HE-D experiment in Mont Terri Underground Rock Laboratory consisted to heat the Opalinus Clay formation for a long time in the undisturbed zone while monitoring the evolution of temperature, strains and pore pressure in the massive. Code-ASTER (EDF-France) and FLAC3D (Itasca) software have been employed in the numerical analysis presented in this paper. By comparison of numerical results with in situ measured data, it shows that the thermal perturbation is the principal driver of coupled fields giving rise of the water pressure and deformations. In simplified 2D calculations it shows that the consideration of the mechanical nonlinearity (plasticity) would significantly decreases the over-estimated pressure in massive. Anisotropy phenomenon of thermal, hydraulic and mechanical behaviour of the Opalinus Clay is considered in 3D numerical model. Generally speaking the overall predictions of the temperature, pore pressure and deformation are in good agreement with measured data during both heating and cooling phase.
Z.M.Jiang Y.Wileveau D.Hoxha F.Homand A.Giraud
LaEGO-ENSG, Ecole Nationale Superiéure de Géologie, Nancy 54501,France Changsha University of scienc Agence nationale pour la gestion des déchets radioactifs, Bure, 55290, France LaEGO-ENSG, Ecole Nationale Superiéure de Géologie, Nancy 54501,France
国际会议
南京
英文
281-287
2006-05-22（万方平台首次上网日期，不代表论文的发表时间）