کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
255414 503368 2010 12 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Analysis of borehole failure modes and pore pressure effects
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر نرم افزارهای علوم کامپیوتر
پیش نمایش صفحه اول مقاله
Analysis of borehole failure modes and pore pressure effects
چکیده انگلیسی

The theoretical background and finite element simulations of Red Wildmoor sandstone hollow-cylinder experiments performed under various axial and radial loading conditions are presented together with borehole failure predictions. A non-linear, stress dependent elastic, Mohr–Coulomb elastoplastic constitutive model generalized for three-dimensional Cosserat continua is employed. The failure predictions are based on the bifurcation theory and incorporate the effect of microstructure. Two bifurcation instability criteria are formulated, one for lateral and one for axial failure modes. The effect of fluid flow on borehole failure is investigated with reservoir depletion and drawdown simulations and the results are corroborated through experimental data.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Computers and Geotechnics - Volume 37, Issues 1–2, January–March 2010, Pages 141–152
نویسندگان
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