NUMERICAL MODELING AND EXPERIMENTAL VALIDATION OF HYDRO-MECHANICAL RESPONSE IN A DEEP HARD CLAY
A numerical modeling is constructed to represent hydromechanical response of a deep hard clay shaft subjected to excavation, which belongs to an underground research laboratory operated by Andra. This study is carried out in the framework of 5th EC Euratom project Modex-Rep. Based on experimental data on core samples, a constitutive model for the poromechanical behavior of saturated and unsaturated rocks is presented. The proposed model is formulated within the thermodynamic framework of porous media and aimed to describe the main features observed in experimental data, especially plastic deformation and influence of water saturation on plastic flow. A series of numerical studies in axisymetric configuration have been performed by using a fully hydromechanical coupling FEM method. Qualitative and quantitative comparisons between numerical simulations and in situ experimental results are presented and discussed. The model predictions were found to be in good agreement with experimental data.
X.C.Song A.Mohamad-Hussein Y.Jia G.Duveau J.F.Shao K.Su
Laboratoire de Mécanique de Lille, Polytech-Lille, Villeneuve dAscq, France Andra, Chatenay Malabry, France
国际会议
南京
英文
412-417
2006-05-22（万方平台首次上网日期，不代表论文的发表时间）