Effect of Fines on Strength of Granular Soil Reinforced with Geosynthetics

Geosynthetics (GSN) are polymeric products used in Geotechnical Engineering for the purpose of improving the properties of the insitu soil. In this project, experimental work was carried out to determine the influence of presence of fines within granular soil on the CBR strength of soil reinforced w...

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Main Authors: Lakshmi S. Muthu, Lakshmi S. Vidhya
Format: Article
Language:English
Published: EDP Sciences 2023-01-01
Series:E3S Web of Conferences
Subjects:
Online Access:https://www.e3s-conferences.org/articles/e3sconf/pdf/2023/42/e3sconf_icstce2023_03010.pdf
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author Lakshmi S. Muthu
Lakshmi S. Vidhya
author_facet Lakshmi S. Muthu
Lakshmi S. Vidhya
author_sort Lakshmi S. Muthu
collection DOAJ
description Geosynthetics (GSN) are polymeric products used in Geotechnical Engineering for the purpose of improving the properties of the insitu soil. In this project, experimental work was carried out to determine the influence of presence of fines within granular soil on the CBR strength of soil reinforced with different GSN (Woven geotextile, Non-woven geotextile, Geogrid and Geonet). Two types of granular soil in disturbed state containing varying percentage of fines were selected from in and around the Chennai region. Soil type 1 contains high fines of about 40% (SHF) whereas soil type 2 contains less fines of about 7% (SLF). Unsoaked CBR (U-CBR) test was carried on unreinforced soil and on soil reinforced with different GSN placed at varying depths of D/5, 2D/5, 3D/5 and 4D/5 from top of soil (D is the total depth of soil), to determine the ideal depth of placement of GSN within SHF and SLF. Soaked CBR (S-CBR) test was carried on unreinforced soil and on soil reinforced with different GSN placed at an ideal depth determined from U-CBR test. Based on the experimental results, ideal depth of placement of GSN for SHF and SLF was found to be D/5 and 3D/5 respectively from top of the soil and Geogrid was found to be the best geosynthetic for reinforcing the granular soil containing high fines and less fines.
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spelling doaj.art-7c37d7311b3c4b21ba905ac45a84c4a82023-08-02T13:18:12ZengEDP SciencesE3S Web of Conferences2267-12422023-01-014050301010.1051/e3sconf/202340503010e3sconf_icstce2023_03010Effect of Fines on Strength of Granular Soil Reinforced with GeosyntheticsLakshmi S. Muthu0Lakshmi S. Vidhya1Department of Civil Engineering, Saveetha School of Engineering, SIMATSDepartment of Civil Engineering, Saveetha School of Engineering, SIMATSGeosynthetics (GSN) are polymeric products used in Geotechnical Engineering for the purpose of improving the properties of the insitu soil. In this project, experimental work was carried out to determine the influence of presence of fines within granular soil on the CBR strength of soil reinforced with different GSN (Woven geotextile, Non-woven geotextile, Geogrid and Geonet). Two types of granular soil in disturbed state containing varying percentage of fines were selected from in and around the Chennai region. Soil type 1 contains high fines of about 40% (SHF) whereas soil type 2 contains less fines of about 7% (SLF). Unsoaked CBR (U-CBR) test was carried on unreinforced soil and on soil reinforced with different GSN placed at varying depths of D/5, 2D/5, 3D/5 and 4D/5 from top of soil (D is the total depth of soil), to determine the ideal depth of placement of GSN within SHF and SLF. Soaked CBR (S-CBR) test was carried on unreinforced soil and on soil reinforced with different GSN placed at an ideal depth determined from U-CBR test. Based on the experimental results, ideal depth of placement of GSN for SHF and SLF was found to be D/5 and 3D/5 respectively from top of the soil and Geogrid was found to be the best geosynthetic for reinforcing the granular soil containing high fines and less fines.https://www.e3s-conferences.org/articles/e3sconf/pdf/2023/42/e3sconf_icstce2023_03010.pdfwoven geotextilenon-woven geotextilegeogridgeonetcbr
spellingShingle Lakshmi S. Muthu
Lakshmi S. Vidhya
Effect of Fines on Strength of Granular Soil Reinforced with Geosynthetics
E3S Web of Conferences
woven geotextile
non-woven geotextile
geogrid
geonet
cbr
title Effect of Fines on Strength of Granular Soil Reinforced with Geosynthetics
title_full Effect of Fines on Strength of Granular Soil Reinforced with Geosynthetics
title_fullStr Effect of Fines on Strength of Granular Soil Reinforced with Geosynthetics
title_full_unstemmed Effect of Fines on Strength of Granular Soil Reinforced with Geosynthetics
title_short Effect of Fines on Strength of Granular Soil Reinforced with Geosynthetics
title_sort effect of fines on strength of granular soil reinforced with geosynthetics
topic woven geotextile
non-woven geotextile
geogrid
geonet
cbr
url https://www.e3s-conferences.org/articles/e3sconf/pdf/2023/42/e3sconf_icstce2023_03010.pdf
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