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International Journal of Mining and Geo-Engineering، جلد ۵۹، شماره ۱، صفحات ۵۱-۶۰
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| عنوان فارسی |
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| چکیده فارسی مقاله |
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| کلیدواژه‌های فارسی مقاله |
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| عنوان انگلیسی |
Experimental study on the cyclic swelling- shrinkage behaviour of soil in the Algerian region of N’Gaous |
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| چکیده انگلیسی مقاله |
The phenomenon of swelling-shrinkage has gained widespread attention in practice owing to the generation of eroded clayey layers of soil that amplify with global climate change and the seasonal water content. This provokes several serious disorders affecting the stability of nearby constructions and consequently generating human loss. The expansive clayey soils show the phenomena of wetting and drying cycles in their natural state (undisturbed soil). Hence, classical oedometric tests are found to be unable to take into account the thermal behavior of naturally swelling soils; this is proven by the resulting asymptotic volumetric behavior, as well as the steady values of the potential of swelling and shrinkage. The main aim of this experimental analysis is to derive a test that considers the significant effect of temperature. Experimental results of an oedometric approach are represented herein for the purpose of investigating the volumetric and hydric behavior of naturally swelling soil in the region of N’Gaous (Eastern Batna province, Algeria) through drying-wetting paths. Innovative expressions are derived for the direct computations of the swelling-shrinkage potential in terms of water content, appearance time and applied loads. It is of interest to mention that those expressions are applicable to other regions in the world with similar soil geotechnical and chemical characteristics and conditions. The cyclic outputs show that the swelling pressure variation with the appearance time is mainly related to the first cycle of swelling-shrinkage; as it exhibits a noticeable increase in the swelling potential with the amplification of applied loads until reaching a state of steadiness. The experimental results demonstrate a high degree of reliability and correlation with the soil behavior. Therefore, the swelling-shrinkage potentials are expressed innovatively in equations that help predict the soil behavior in expansive regions in order to enhance the safety of nearby foundations. |
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| کلیدواژه‌های انگلیسی مقاله |
Clayey Soil,Infiltration velocity,Swelling-shrinkage phenomena,Swelling pressure,Wetting-drying paths |
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| نویسندگان مقاله |
Benabdelmoumene Zakaria |
Laboratory of Natural Risk and Regional Planning (LRNAT), Department of Civil Engineering, Faculty of Technology,University of Batna 2. Batna, Algeria.
Mohamed Baheddi |
Laboratory of Natural Risk and Regional Planning (LRNAT), Department of Civil Engineering, Faculty of Technology, University of Batna 2, Batna, Algeria.
Imene Bougouffa |
Department of structures and materials, Faculty of Civil Engineering, University of Houari Boumediene USTHB, Algeirs, Algeria.
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| نشانی اینترنتی |
https://ijmge.ut.ac.ir/article_100236_53df0719ba3d751049c1d2149fcb1a39.pdf |
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| کد مقاله (doi) |
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| زبان مقاله منتشر شده |
en |
| موضوعات مقاله منتشر شده |
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| نوع مقاله منتشر شده |
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