کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5020241 | 1468677 | 2017 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
The application of a Matsuoka-Nakai-Lade-Duncan failure criterion to two porous sandstones
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
علوم زمین و سیارات
مهندسی ژئوتکنیک و زمین شناسی مهندسی
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چکیده انگلیسی
We summarize two suites of recent true triaxial tests in two porous sandstones, Coconino and Bentheim. One suite of tests conducted under constant Ï2 and Ï3, which revealed the effect of Ï2 and Ï3 on rock failure. The other suite of tests, performed under constant Lode angle, determined the failure dependencies on mean stress and Lode angle. Building and modifying failure descriptions by Matsuoka-Nakai (MN) and Lade-Duncan (LD), an explicit failure criterion (modified-MNLD) that generalizes a class of failure forms is used to fit the novel loading path data of both sandstones. The determined failure descriptions fit both rocks well over a wide range of failure conditions. Then, the generated failure descriptions were further used to predict failure conditions under the constant Ï2 and Ï3 loading path. The predictions by the modified-MNLD are generally consistent with these data. The predictions also successfully replicated the variation of Ï1,peak with Ï2 under constant Ï3, suggesting the potential of the modified-MNLD to clarify the effect of Ï2 on rock failure.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Rock Mechanics and Mining Sciences - Volume 92, February 2017, Pages 9-18
Journal: International Journal of Rock Mechanics and Mining Sciences - Volume 92, February 2017, Pages 9-18
نویسندگان
Xiaodong Ma, John W. Rudnicki, Bezalel C. Haimson,