Effect of woven geotextile reinforcement on mechanical behavior of calcareous sands
The mechanical properties of calcareous sands are critical as potentially important material sources for marine geotechnical constructions. Brittleness and large deformations created in calcareous sands can affect the stability of marine structures and geosynthetic reinforcement is a promising new a...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2023-07-01
|
| Series: | Case Studies in Construction Materials |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2214509523001936 |
| _version_ | 1827920541951983616 |
|---|---|
| author | Nima Hakimelahi Meysam Bayat Rassoul Ajalloeian Bahram Nadi |
| author_facet | Nima Hakimelahi Meysam Bayat Rassoul Ajalloeian Bahram Nadi |
| author_sort | Nima Hakimelahi |
| collection | DOAJ |
| description | The mechanical properties of calcareous sands are critical as potentially important material sources for marine geotechnical constructions. Brittleness and large deformations created in calcareous sands can affect the stability of marine structures and geosynthetic reinforcement is a promising new approach. In this study, a series of consolidated-drained (CD) tests were conducted to evaluate the mechanical properties and deformation of woven geotextile-reinforced calcareous sand. For this purpose, the effect of geotextile layers, relative density, type of woven geotextile, and confining pressure were investigated. The results show that the strength of the reinforced specimens increases markedly compared to the unreinforced calcareous sand and the deviatoric stress-strain curves change from slight softening to hardening and dilatancy. Also, by increasing the number of woven geotextile layers and applying a confining pressure, the shear deformation shifts toward strain-hardening behavior. Overall, woven geotextiles significantly improve the apparent cohesion strength of calcareous sand soil. The woven geotextile, relative density, and confining pressure all contribute to volumetric changes and dilatancy of reinforced specimens, but particle breakage is more affected by confining pressure. |
| first_indexed | 2024-03-13T04:12:06Z |
| format | Article |
| id | doaj.art-fe26a8f0a87a441d882d6d73ba80cc5b |
| institution | Directory Open Access Journal |
| issn | 2214-5095 |
| language | English |
| last_indexed | 2024-03-13T04:12:06Z |
| publishDate | 2023-07-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Case Studies in Construction Materials |
| spelling | doaj.art-fe26a8f0a87a441d882d6d73ba80cc5b2023-06-21T06:54:09ZengElsevierCase Studies in Construction Materials2214-50952023-07-0118e02014Effect of woven geotextile reinforcement on mechanical behavior of calcareous sandsNima Hakimelahi0Meysam Bayat1Rassoul Ajalloeian2Bahram Nadi3Department of Civil Engineering, Najafabad Branch, Islamic Azad University, Najafabad, IranDepartment of Civil Engineering, Najafabad Branch, Islamic Azad University, Najafabad, Iran; Corresponding author.Department of Geology, Faculty of Science, University of Isfahan, Isfahan, IranDepartment of Civil Engineering, Najafabad Branch, Islamic Azad University, Najafabad, IranThe mechanical properties of calcareous sands are critical as potentially important material sources for marine geotechnical constructions. Brittleness and large deformations created in calcareous sands can affect the stability of marine structures and geosynthetic reinforcement is a promising new approach. In this study, a series of consolidated-drained (CD) tests were conducted to evaluate the mechanical properties and deformation of woven geotextile-reinforced calcareous sand. For this purpose, the effect of geotextile layers, relative density, type of woven geotextile, and confining pressure were investigated. The results show that the strength of the reinforced specimens increases markedly compared to the unreinforced calcareous sand and the deviatoric stress-strain curves change from slight softening to hardening and dilatancy. Also, by increasing the number of woven geotextile layers and applying a confining pressure, the shear deformation shifts toward strain-hardening behavior. Overall, woven geotextiles significantly improve the apparent cohesion strength of calcareous sand soil. The woven geotextile, relative density, and confining pressure all contribute to volumetric changes and dilatancy of reinforced specimens, but particle breakage is more affected by confining pressure.http://www.sciencedirect.com/science/article/pii/S2214509523001936Calcareous SandWoven GeotextileShear StrengthDeformationBreakage |
| spellingShingle | Nima Hakimelahi Meysam Bayat Rassoul Ajalloeian Bahram Nadi Effect of woven geotextile reinforcement on mechanical behavior of calcareous sands Case Studies in Construction Materials Calcareous Sand Woven Geotextile Shear Strength Deformation Breakage |
| title | Effect of woven geotextile reinforcement on mechanical behavior of calcareous sands |
| title_full | Effect of woven geotextile reinforcement on mechanical behavior of calcareous sands |
| title_fullStr | Effect of woven geotextile reinforcement on mechanical behavior of calcareous sands |
| title_full_unstemmed | Effect of woven geotextile reinforcement on mechanical behavior of calcareous sands |
| title_short | Effect of woven geotextile reinforcement on mechanical behavior of calcareous sands |
| title_sort | effect of woven geotextile reinforcement on mechanical behavior of calcareous sands |
| topic | Calcareous Sand Woven Geotextile Shear Strength Deformation Breakage |
| url | http://www.sciencedirect.com/science/article/pii/S2214509523001936 |
| work_keys_str_mv | AT nimahakimelahi effectofwovengeotextilereinforcementonmechanicalbehaviorofcalcareoussands AT meysambayat effectofwovengeotextilereinforcementonmechanicalbehaviorofcalcareoussands AT rassoulajalloeian effectofwovengeotextilereinforcementonmechanicalbehaviorofcalcareoussands AT bahramnadi effectofwovengeotextilereinforcementonmechanicalbehaviorofcalcareoussands |