RELAIBILITY ASSESSMENT OF THE SOIL-WATER-RETENTION FOR UNSATURATED SAND SOILS
In this investigation, the soil-water-retention is described in the soil-water-characteristics-curve (SWCC). SWCC contains the data required to explain the unsaturated soils' mechanical behavior. The reliable findings of unsaturated sand soil tests and the impact of initial density on the hydr...
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Faculty of Engineering, University of Kufa
2025-02-01
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| Series: | Mağallaẗ Al-kūfaẗ Al-handasiyyaẗ |
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| Online Access: | https://journal.uokufa.edu.iq/index.php/kje/article/view/15306 |
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| author | Mohammed Shakir Mahmood Mustafa Jamal Abrahim Salah Mahdi Saleh |
| author_facet | Mohammed Shakir Mahmood Mustafa Jamal Abrahim Salah Mahdi Saleh |
| author_sort | Mohammed Shakir Mahmood |
| collection | DOAJ |
| description | In this investigation, the soil-water-retention is described in the soil-water-characteristics-curve (SWCC). SWCC contains the data required to explain the unsaturated soils' mechanical behavior. The reliable findings of unsaturated sand soil tests and the impact of initial density on the hydraulic properties under various matric suction and net normal stresses are examined. The tests are carried out on a sample of soil from the northern region of Al-Najaf city, Iraq. The sample of soil has been disturbed and remolded in the cell of Oedometer device. A modified high-air-entry-disc-based Oedometer is used with accessories to control the air and water pressures to achieve the specific matric suction in the unsaturated test. Two sets of tested specimens are prepared, first, at 90% and second at 95% of the maximum dry unit weight from the standard Proctor experiment. Each set is performed for different matric suction under 200 and 400 kPa net normal stress. (SWCC) The soil water retention curve is affected by the application of net normal stress and initial density. There is a decrease in water volume change with wetting progress in unsaturated soil tests due to an increase in soil density. |
| format | Article |
| id | doaj-art-3a993b8c18f6475abbe687eb81777965 |
| institution | Kabale University |
| issn | 2071-5528 2523-0018 |
| language | English |
| publishDate | 2025-02-01 |
| publisher | Faculty of Engineering, University of Kufa |
| record_format | Article |
| series | Mağallaẗ Al-kūfaẗ Al-handasiyyaẗ |
| spelling | doaj-art-3a993b8c18f6475abbe687eb817779652025-02-06T06:10:33ZengFaculty of Engineering, University of KufaMağallaẗ Al-kūfaẗ Al-handasiyyaẗ2071-55282523-00182025-02-01160111210.30572/2018/KJE/160101RELAIBILITY ASSESSMENT OF THE SOIL-WATER-RETENTION FOR UNSATURATED SAND SOILSMohammed Shakir Mahmood0https://orcid.org/0000-0002-7725-2519Mustafa Jamal Abrahim1Salah Mahdi Saleh2Civil Eng. Dept., University of Kufa, Al-Najaf, IraqCivil Eng Dept., Al Iraqia University, Baghdad, IraqCivil Eng. Dept., University of Kufa, Al-Najaf, IraqIn this investigation, the soil-water-retention is described in the soil-water-characteristics-curve (SWCC). SWCC contains the data required to explain the unsaturated soils' mechanical behavior. The reliable findings of unsaturated sand soil tests and the impact of initial density on the hydraulic properties under various matric suction and net normal stresses are examined. The tests are carried out on a sample of soil from the northern region of Al-Najaf city, Iraq. The sample of soil has been disturbed and remolded in the cell of Oedometer device. A modified high-air-entry-disc-based Oedometer is used with accessories to control the air and water pressures to achieve the specific matric suction in the unsaturated test. Two sets of tested specimens are prepared, first, at 90% and second at 95% of the maximum dry unit weight from the standard Proctor experiment. Each set is performed for different matric suction under 200 and 400 kPa net normal stress. (SWCC) The soil water retention curve is affected by the application of net normal stress and initial density. There is a decrease in water volume change with wetting progress in unsaturated soil tests due to an increase in soil density.https://journal.uokufa.edu.iq/index.php/kje/article/view/15306gypseous sandnajafunsaturated soilswccnet normal stress |
| spellingShingle | Mohammed Shakir Mahmood Mustafa Jamal Abrahim Salah Mahdi Saleh RELAIBILITY ASSESSMENT OF THE SOIL-WATER-RETENTION FOR UNSATURATED SAND SOILS Mağallaẗ Al-kūfaẗ Al-handasiyyaẗ gypseous sand najaf unsaturated soil swcc net normal stress |
| title | RELAIBILITY ASSESSMENT OF THE SOIL-WATER-RETENTION FOR UNSATURATED SAND SOILS |
| title_full | RELAIBILITY ASSESSMENT OF THE SOIL-WATER-RETENTION FOR UNSATURATED SAND SOILS |
| title_fullStr | RELAIBILITY ASSESSMENT OF THE SOIL-WATER-RETENTION FOR UNSATURATED SAND SOILS |
| title_full_unstemmed | RELAIBILITY ASSESSMENT OF THE SOIL-WATER-RETENTION FOR UNSATURATED SAND SOILS |
| title_short | RELAIBILITY ASSESSMENT OF THE SOIL-WATER-RETENTION FOR UNSATURATED SAND SOILS |
| title_sort | relaibility assessment of the soil water retention for unsaturated sand soils |
| topic | gypseous sand najaf unsaturated soil swcc net normal stress |
| url | https://journal.uokufa.edu.iq/index.php/kje/article/view/15306 |
| work_keys_str_mv | AT mohammedshakirmahmood relaibilityassessmentofthesoilwaterretentionforunsaturatedsandsoils AT mustafajamalabrahim relaibilityassessmentofthesoilwaterretentionforunsaturatedsandsoils AT salahmahdisaleh relaibilityassessmentofthesoilwaterretentionforunsaturatedsandsoils |