| Title: | Influence of geosynthetic reinforcement on the shear strength characteristics of two-layer sub-grade |
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| Authors: | ID Kamalzare, Mehrad (Author)
ID Ziaie-Moayed, Reza (Author)
ID Fakulteta za gradbeništvo, prometno inženirstvo in arhitekturo Univerze v Mariboru (Copyright holder) |
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| Files: |  Acta_geotechnica_Slovenica_2011_Kamalzare,_Ziaie-Moayed_Influence_of_geosynthetic_reinforcement_on_the_shear_strength_characteristics.pdf (1,52 MB)
MD5: 86A90F1A92A3CC0B96E4703CADB101D2
PID: 20.500.12556/dkum/4333c4fe-5b5e-4705-bb0d-34eb82d45026
 http://fgserver3.fg.um.si/journal-ags/2011-1/article-4.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: | Due to the low bearing capacity of soft clayey soils in places that because of economic, military or geological conditions we are oblige to build a structure on, geosynthetics will be used to reinforce the soil and improve its bearing capacity. Particularly, A good example is roadways, where geosynthetics are placed between the interface of the granular materials and the soft-soil sub-grade to improve the bearing capacity of the composite layers. In previous research the behavior of one-layer soils that were reinforced with different kinds of geosynthetics were studied by experimental and analytical methods and some numerical models have been developed. In this paper the behavior of two-layer soils (granular base and clayey sub-grade) that were reinforced with some geosynthetics are investigated. Large-scale direct shear tests were performed on unreinforced and reinforced samples with different geosynthetics. The results show that depending on the characteristics of the geosynthetics, the inclusion of these materials may increase or decrease the shear strength parameters of the interface of two-layered soils. It implies that the geosynthetic-reinforced soils in the sub-base layer of roads are so sensitive to the characteristics of geosynthetics and will perform better than non-reinforced soils and consequently the load-carrying capacity of the basement will improve only if the appropriate geosynthetics are used. However, geogrid shows more reinforcement efficiency under higher vertical stresses. Increasing the relative density of the clayey sub-grade would also cause the geogrid reinforcement to be more effective. |
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| Keywords: | shear strength, geosynthetic, large scale direct shear test, soft clay, subgrade |
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| Publication status: | Published |
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| Publication version: | Version of Record |
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| Year of publishing: | 2011 |
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| Number of pages: | str. 39-49 |
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| Numbering: | Letn. 8, št. 1 |
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| PID: | 20.500.12556/DKUM-70759  |
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| ISSN: | 1854-0171 |
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| UDC: | 624.13:552.523 |
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| ISSN on article: | 1854-0171 |
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| COBISS.SI-ID: | 262516736 |
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| NUK URN: | URN:SI:UM:DK:QK3YYGUA |
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| Copyright: | Fakulteta za gradbeništvo, prometno inženirstvo in arhitekturo Univerze v Mariboru |
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| Publication date in DKUM: | 13.06.2018 |
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| Views: | 1429 |
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| Downloads: | 187 |
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| Metadata: |    |
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| Categories: | Misc.
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