| Issue |
E3S Web of Conf.
Volume 405, 2023
2023 International Conference on Sustainable Technologies in Civil and Environmental Engineering (ICSTCE 2023)
|
|
|---|---|---|
| Article Number | 03010 | |
| Number of page(s) | 9 | |
| Section | Structural Engineering & Concrete Technology | |
| DOI | https://doi.org/10.1051/e3sconf/202340503010 | |
| Published online | 26 July 2023 | |
Effect of Fines on Strength of Granular Soil Reinforced with Geosynthetics
1 Department of Civil Engineering, Saveetha School of Engineering, SIMATS, Chennai, Tamil Nadu, India
2 Department of Civil Engineering, Rajalakshmi Engineering College, Chennai, Tamil Nadu, India
* Corresponding author: muthulakshmi.s@rajalakshmi.edu.in
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.
Key words: Woven Geotextile / Non-woven Geotextile / Geogrid / Geonet / CBR
© The Authors, published by EDP Sciences, 2023
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