کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6447673 | 1641777 | 2016 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Effect of densification on shear strength behavior of argillaceous siltstone subjected to variations in weathering-related physical and mechanical conditions
ترجمه فارسی عنوان
اثر تراکم بر رفتار استحکام برشی از آهک های آهکی تحت تاثیر تغییرات در شرایط فیزیکی و مکانیکی مربوط به هوازدگی
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کلمات کلیدی
آب و هوا، مقاومت برشی، ضخامت
موضوعات مرتبط
مهندسی و علوم پایه
علوم زمین و سیارات
مهندسی ژئوتکنیک و زمین شناسی مهندسی
چکیده انگلیسی
In order to study the effect of densification due to weathering on the strength behavior of soft rocks, this paper presents results of consecutive weathering and direct shear tests performed on an argillaceous siltstone. A specimen prepared with fresh argillaceous siltstone first underwent combined water and temperature variations under various stresses. Densification in weathering-related physical and mechanical conditions was indicated by measured dry densities. Then the weathered specimen was subjected to direct shear without remolding. The effect of densification during weathering on the shear strength behavior obtained from the subsequent direct shear tests was discussed. The study highlights that: (1) Densification during weathering is significant at stress values greater than 200Â kPa. (2) Weathering leads to a 44% strength reduction of the fresh material with a stress of 50Â kPa. (3) Weathering induced densification with a stress of 1400Â kPa enhances the shear strength of the fresh material up to 259%.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Engineering Geology - Volume 208, 24 June 2016, Pages 63-68
Journal: Engineering Geology - Volume 208, 24 June 2016, Pages 63-68
نویسندگان
Y. Yin, B.Y. Zhang, J.H. Zhang, G.L. Sun,