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Estimation of the shear strength of coarse-grained soils with fine particles
The determination of the shear strength of coarse-grained soils in standard shear devices is a challenging task due to the presence of large grains. Three approaches could be used to reduce the grain size of the tested specimen. This study aimed to determine whether the shear strength of a coarse-gr...
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Published in: | Transportation Geotechnics 2020-12, Vol.25, p.100407, Article 100407 |
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description | The determination of the shear strength of coarse-grained soils in standard shear devices is a challenging task due to the presence of large grains. Three approaches could be used to reduce the grain size of the tested specimen. This study aimed to determine whether the shear strength of a coarse-grained soil with fines (particles smaller than 0.08 mm) can be estimated by the parallel gradation approach. Direct shear tests were conducted on parallel graded specimens of two soil types with different low plastic fines content. Two criteria can be used to select the dry density of the reconstituted specimen: the same dry density or the same relative density as the initial soil. The results showed that when the specimens had a low fines content, both criteria resulted in a similar dry density of the reconstituted soil, and the shear strength of the initial soil was correctly estimated. However, for the specimens with a high fines content, the friction angle of the initial soil was correctly estimated, and its cohesion was overestimated when the reconstituted soil was tested at the same dry density as the initial soil. A cohesion-fines content relationship was proposed to predict the initial soil cohesion. |
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Three approaches could be used to reduce the grain size of the tested specimen. This study aimed to determine whether the shear strength of a coarse-grained soil with fines (particles smaller than 0.08 mm) can be estimated by the parallel gradation approach. Direct shear tests were conducted on parallel graded specimens of two soil types with different low plastic fines content. Two criteria can be used to select the dry density of the reconstituted specimen: the same dry density or the same relative density as the initial soil. The results showed that when the specimens had a low fines content, both criteria resulted in a similar dry density of the reconstituted soil, and the shear strength of the initial soil was correctly estimated. However, for the specimens with a high fines content, the friction angle of the initial soil was correctly estimated, and its cohesion was overestimated when the reconstituted soil was tested at the same dry density as the initial soil. A cohesion-fines content relationship was proposed to predict the initial soil cohesion.</description><identifier>ISSN: 2214-3912</identifier><identifier>EISSN: 2214-3912</identifier><identifier>DOI: 10.1016/j.trgeo.2020.100407</identifier><language>eng</language><publisher>Elsevier Ltd</publisher><subject>Civil Engineering ; Coarse-grained soils ; Engineering Sciences ; Fines content ; Géotechnique ; Parallel gradation method ; Shear strength</subject><ispartof>Transportation Geotechnics, 2020-12, Vol.25, p.100407, Article 100407</ispartof><rights>2020 Elsevier Ltd</rights><rights>Distributed under a Creative Commons Attribution 4.0 International License</rights><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c382t-d9127746088487e6f23f681862e83cb5e3f433e57d9b2294e1ada751e07535283</citedby><cites>FETCH-LOGICAL-c382t-d9127746088487e6f23f681862e83cb5e3f433e57d9b2294e1ada751e07535283</cites><orcidid>0000-0002-5637-770X ; 0000-0001-6680-494X</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>230,314,780,784,885,27924,27925</link.rule.ids><backlink>$$Uhttps://hal.univ-lorraine.fr/hal-02898105$$DView record in HAL$$Hfree_for_read</backlink></links><search><creatorcontrib>Kouakou, N.M.</creatorcontrib><creatorcontrib>Cuisinier, O.</creatorcontrib><creatorcontrib>Masrouri, F.</creatorcontrib><title>Estimation of the shear strength of coarse-grained soils with fine particles</title><title>Transportation Geotechnics</title><description>The determination of the shear strength of coarse-grained soils in standard shear devices is a challenging task due to the presence of large grains. Three approaches could be used to reduce the grain size of the tested specimen. This study aimed to determine whether the shear strength of a coarse-grained soil with fines (particles smaller than 0.08 mm) can be estimated by the parallel gradation approach. Direct shear tests were conducted on parallel graded specimens of two soil types with different low plastic fines content. Two criteria can be used to select the dry density of the reconstituted specimen: the same dry density or the same relative density as the initial soil. The results showed that when the specimens had a low fines content, both criteria resulted in a similar dry density of the reconstituted soil, and the shear strength of the initial soil was correctly estimated. However, for the specimens with a high fines content, the friction angle of the initial soil was correctly estimated, and its cohesion was overestimated when the reconstituted soil was tested at the same dry density as the initial soil. A cohesion-fines content relationship was proposed to predict the initial soil cohesion.</description><subject>Civil Engineering</subject><subject>Coarse-grained soils</subject><subject>Engineering Sciences</subject><subject>Fines content</subject><subject>Géotechnique</subject><subject>Parallel gradation method</subject><subject>Shear strength</subject><issn>2214-3912</issn><issn>2214-3912</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2020</creationdate><recordtype>article</recordtype><recordid>eNp9kD1PwzAQhi0EElXpL2DJypDgj_gjA0NVFYoUiQVmy3UujasQV7ZVxL8nIQgxMd3puXtP770I3RJcEEzE_bFI4QC-oJhOBJdYXqAFpaTMWUXo5Z_-Gq1iPGKMKa-EkOUC1duY3LtJzg-Zb7PUQRY7MCGLKcBwSN1ErTchQn4Ixg3QZNG7PmYfbhy2I8hOJiRne4g36Ko1fYTVT12it8ft62aX1y9Pz5t1nVumaMqb0YmUpcBKlUqCaClrhSJKUFDM7jmwtmQMuGyqPaVVCcQ0RnICWHLGqWJLdDff7UyvT2H0Hz61N07v1rWeGKaqUgTzMxl32bxrg48xQPsrIFhP-emj_s5PT_npOb9R9TCrYHzj7CDoaB0MFhoXwCbdePev_gs6nHgT</recordid><startdate>20201201</startdate><enddate>20201201</enddate><creator>Kouakou, N.M.</creator><creator>Cuisinier, O.</creator><creator>Masrouri, F.</creator><general>Elsevier Ltd</general><general>Elsevier</general><scope>AAYXX</scope><scope>CITATION</scope><scope>1XC</scope><scope>VOOES</scope><orcidid>https://orcid.org/0000-0002-5637-770X</orcidid><orcidid>https://orcid.org/0000-0001-6680-494X</orcidid></search><sort><creationdate>20201201</creationdate><title>Estimation of the shear strength of coarse-grained soils with fine particles</title><author>Kouakou, N.M. ; Cuisinier, O. ; Masrouri, F.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c382t-d9127746088487e6f23f681862e83cb5e3f433e57d9b2294e1ada751e07535283</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2020</creationdate><topic>Civil Engineering</topic><topic>Coarse-grained soils</topic><topic>Engineering Sciences</topic><topic>Fines content</topic><topic>Géotechnique</topic><topic>Parallel gradation method</topic><topic>Shear strength</topic><toplevel>online_resources</toplevel><creatorcontrib>Kouakou, N.M.</creatorcontrib><creatorcontrib>Cuisinier, O.</creatorcontrib><creatorcontrib>Masrouri, F.</creatorcontrib><collection>CrossRef</collection><collection>Hyper Article en Ligne (HAL)</collection><collection>Hyper Article en Ligne (HAL) (Open Access)</collection><jtitle>Transportation Geotechnics</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Kouakou, N.M.</au><au>Cuisinier, O.</au><au>Masrouri, F.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Estimation of the shear strength of coarse-grained soils with fine particles</atitle><jtitle>Transportation Geotechnics</jtitle><date>2020-12-01</date><risdate>2020</risdate><volume>25</volume><spage>100407</spage><pages>100407-</pages><artnum>100407</artnum><issn>2214-3912</issn><eissn>2214-3912</eissn><abstract>The determination of the shear strength of coarse-grained soils in standard shear devices is a challenging task due to the presence of large grains. Three approaches could be used to reduce the grain size of the tested specimen. This study aimed to determine whether the shear strength of a coarse-grained soil with fines (particles smaller than 0.08 mm) can be estimated by the parallel gradation approach. Direct shear tests were conducted on parallel graded specimens of two soil types with different low plastic fines content. Two criteria can be used to select the dry density of the reconstituted specimen: the same dry density or the same relative density as the initial soil. The results showed that when the specimens had a low fines content, both criteria resulted in a similar dry density of the reconstituted soil, and the shear strength of the initial soil was correctly estimated. However, for the specimens with a high fines content, the friction angle of the initial soil was correctly estimated, and its cohesion was overestimated when the reconstituted soil was tested at the same dry density as the initial soil. 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subjects | Civil Engineering Coarse-grained soils Engineering Sciences Fines content Géotechnique Parallel gradation method Shear strength |
title | Estimation of the shear strength of coarse-grained soils with fine particles |
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