Shear response and frictional properties of soil mixtures at different dry weight proportions

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dc.contributor.authorKarademir, Tanay
dc.date.accessioned2024-07-18T20:49:06Z
dc.date.available2024-07-18T20:49:06Z
dc.date.issued2022
dc.departmentİstanbul Bilgi Üniversitesien_US
dc.description.abstractOn a specific purpose to investigate and evaluate an important mechanical property of natural soil mixtures being shear response and frictional characteristics, an extensive laboratory experimental program has been conducted that consisted of a series of direct shear tests on various soil mixtures, including sand (S), silt (M) and clay (C), at different dry weight proportions [(i) S:100% - M:0% - C:0%; (ii) S:50% - M:50% - C:0%; (iii) S:50% - M:0% - C:50%; (iv) S:50% - M:25% - C:25%]. The experimental findings of the testing program have shown that the measured values of two crucial engineering design parameters such as the peak (t(peak)) as well as the residual (tresidual) shear strengths for the soil mixtures are strongly influenced by the present soil type such that the detected values of tpeak, tresidual increase with an increase in sand content in the mixture whereas the attained values of t(peak), t(residual) decrease with an increase in clay content in the mixture. Further, adding silt into sand-clay mixture improves strength characteristics such that the values of tpeak, tresidual become greater. On the other hand, adding silt into pure sand diminishes frictional resistance such that the values of t(peak), t(residual) become lower. Consequently, it is seen that soil particle size (i.e. grain size) plays an important role on the shear strength behavior of the natural soil mixtures. Moreover, the displacement (dpeak) required to reach peak shear strength (t(peak)) was also determined as a result of the direct shear tests. As such, the detected values of dpeak become larger with higher clay content available in the mixture, while the obtained values of dpeak become smaller with higher sand content existing in the mixture. Therefore, it is concluded that the higher the clay content, the mixture exhibits relatively more ductile shear behavior, whereas the higher the sand content, the mixture displays relatively more brittle shear response.en_US
dc.identifier.doi10.14744/sigma.2022.00094
dc.identifier.endpage796en_US
dc.identifier.issn1304-7205
dc.identifier.issn1304-7191
dc.identifier.issue4en_US
dc.identifier.scopus2-s2.0-85160259374en_US
dc.identifier.scopusqualityN/Aen_US
dc.identifier.startpage787en_US
dc.identifier.urihttps://doi.org/10.14744/sigma.2022.00094
dc.identifier.urihttps://hdl.handle.net/11411/8086
dc.identifier.volume40en_US
dc.identifier.wosWOS:000895900200004en_US
dc.identifier.wosqualityN/Aen_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherYildiz Technical Univen_US
dc.relation.ispartofSigma Journal of Engineering and Natural Sciences-Sigma Muhendislik Ve Fen Bilimleri Dergisien_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectSoil Mixturesen_US
dc.subjectFrictional Propertiesen_US
dc.subjectShear Behavioren_US
dc.subjectPeak Strengthen_US
dc.subjectResidual Strengthen_US
dc.subjectStrengthen_US
dc.subjectSandsen_US
dc.subjectStiffnessen_US
dc.subjectFinesen_US
dc.titleShear response and frictional properties of soil mixtures at different dry weight proportionsen_US
dc.typeArticleen_US

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