کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
9537782 1359427 2005 12 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Study of desaturation and resaturation in brittle rock with anisotropic damage
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات مهندسی ژئوتکنیک و زمین شناسی مهندسی
پیش نمایش صفحه اول مقاله
Study of desaturation and resaturation in brittle rock with anisotropic damage
چکیده انگلیسی
This paper deals with numerical modelling of anisotropic damage induced by desaturation and resaturation processes in a brittle rock. This study is conducted in the framework of geological barrier safety analysis for deep disposal of nuclear waste. A non-linear poroelastic model coupled with anisotropic damage is proposed for constitutive modelling of unsaturated rock. A fully coupled FEM method is used for modelling of hydromechanical coupling problems. Instantaneous phase change without dissipation between water liquid phase and vapour is included. Parametric studies are performed to investigate influences of main factors involved in such processes. Rock damage induced by excavation, desaturation and resaturation is evaluated. Finally, we analyse the importance of taking into account the correlation between induced damage and rock permeability.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Engineering Geology - Volume 81, Issue 3, 14 November 2005, Pages 341-352
نویسندگان
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