| Title: | An unsaturated-soils approach to the bearing capacity of foundation structures |
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| Authors: | ID Taskiran, Taha (Author)
ID Fakulteta za gradbeništvo, prometno inženirstvo in arhitekturo Univerze v Mariboru (Copyright holder) |
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| Files: |  Acta_Geotechnica_Slovenica_2017_Taskiran_An_unsaturated-soils_approach_to_the_bearing_capacity_of_foundation_structures_unlocked.pdf (347,24 KB)
MD5: 75B0A0A640A9C327BA6B09D71BC7950C
PID: 20.500.12556/dkum/58976416-0f12-4095-950e-c12c9ea47ac4
 http://fgserver3.fg.um.si/journal-ags/2017-2/article-5.asp
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| Language: | English |
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| Work type: | Scientific work |
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| Typology: | 1.01 - Original Scientific Article |
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| Organization: | FGPA - Faculty of Civil Engineering, Transportation Engineering and Architecture
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| Abstract: | Unsaturated soils are maintaining their importance for researchers and there is still much need to investigate the many engineering aspects of these soils. A new technique is proposed here to predict the variation of the bearing capacity of unsaturated soils with matric suction. The proposed method is an extension of conventional bearing-capacity theories and conceptually based on the logarithmic model of the shear strength of unsaturated soils, which only include one unknown, unsaturated parameter (the airentry value, AEV). The possibility of predicting the unsaturated bearing capacity of soils is shown by the saturated effective shear-strength parameters c' and Ø' and the AEV from the soil-water retention curve (SWRC). Considering the necessity of validating new methods with other researchers’ data, the proposed equation is tested using the published unsaturated experimental study by the author, in addition to some reported experimental studies on the shear strength for unsaturated soils and also a model footing loading on unsaturated sand under controlled suction conditions. The results of the study indicate that there is a good comparison between the “unsaturated bearing capacities” obtained via predicted and measured unsaturated strength parameters (ctotal , Ø) and also between the measured/ calculated bearing values of a model footing loading. Consequently, it is shown that, without needing complex unsaturated testing facilities, the proposed equation is capable of predicting the unsaturated bearing capacity for both fine-grained and sandy soils, requiring only one unsaturated parameter, which can be obtained from the SWRC or predicted using the basic soil-index properties. |
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| Keywords: | unsaturated soils, unsaturated bearing capacity, suction strength, foundation design |
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| Publication status: | Published |
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| Publication version: | Version of Record |
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| Year of publishing: | 2017 |
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| Number of pages: | str. 59-69 |
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| Numbering: | Letn. 14, št. 2 |
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| PID: | 20.500.12556/DKUM-70896  |
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| ISSN: | 1854-0171 |
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| ISSN on article: | 1854-0171 |
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| COBISS.SI-ID: | 303012864 |
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| NUK URN: | URN:SI:UM:DK:B5VTTYXQ |
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| Copyright: | Fakulteta za gradbeništvo, prometno inženirstvo in arhitekturo Univerze v Mariboru |
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| Publication date in DKUM: | 18.06.2018 |
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| Views: | 1252 |
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| Downloads: | 77 |
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| Metadata: |    |
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| Categories: | Misc.
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