Study of the Effect of Geomembranes on the Interaction between the Soil and Underground Structures
Geomembranes are one of the most widely used insulation materials in various civil engineering applications. Failure due to the slippage between geomembranes and the interfacing soils was detected at some cases. This paper presents the results of a series of laboratory tests carried out to investiga...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | Arabic |
| Published: |
Faculty of Engineering, Tanta University
2022-12-01
|
| Series: | Journal of Engineering Research - Egypt |
| Subjects: | |
| Online Access: | https://erjeng.journals.ekb.eg/article_271103_d8d8a47c10b5bf2d0e3f515cfb5a17dc.pdf |
| _version_ | 1826996114572705792 |
|---|---|
| author | Ahmed Rashed Tamer Sorour Ahmed Elsayed |
| author_facet | Ahmed Rashed Tamer Sorour Ahmed Elsayed |
| author_sort | Ahmed Rashed |
| collection | DOAJ |
| description | Geomembranes are one of the most widely used insulation materials in various civil engineering applications. Failure due to the slippage between geomembranes and the interfacing soils was detected at some cases. This paper presents the results of a series of laboratory tests carried out to investigate the factors controlling the developed interface stresses strength between the soil and geomembranes. In order to quantify the effect of different commonly used isolation membranes on the behavior and stability of buried concrete structures, laboratory studies by using modified direct shear apparatus is performed and integrated and the reduction in the shear resistance between the soil and different types of isolation geomembranes is determined. Graded sand with well-rounded particles was used in the experimental program. Shear tests were conducted under a normal stress range of about 25-100 kPa. The effect of the geomembranes on the peak and residual interface shear strengths is highlighted. Test’s results indicate development of peak interface shear resistance at a small strain and constant residual interface shear resistance at large strain. It was found that the developed peak and residual interface friction angles between the sand and the geomembranes interfaces ranged from 59 % to 82 % of the corresponding peak and residual interface friction angles between sand and un-protected concrete. |
| first_indexed | 2024-03-13T04:14:55Z |
| format | Article |
| id | doaj.art-ba9f7dc6256543ad975599c4f61fe8a6 |
| institution | Directory Open Access Journal |
| issn | 2356-9441 2735-4873 |
| language | Arabic |
| last_indexed | 2025-02-18T09:42:01Z |
| publishDate | 2022-12-01 |
| publisher | Faculty of Engineering, Tanta University |
| record_format | Article |
| series | Journal of Engineering Research - Egypt |
| spelling | doaj.art-ba9f7dc6256543ad975599c4f61fe8a62024-11-02T16:17:52ZaraFaculty of Engineering, Tanta UniversityJournal of Engineering Research - Egypt2356-94412735-48732022-12-016519220210.21608/erjeng.2022.173265.1120271103Study of the Effect of Geomembranes on the Interaction between the Soil and Underground StructuresAhmed Rashed0Tamer Sorour1Ahmed Elsayed2Geotechnical Engineering and Foundations, Civil Engineering Department, Higher Institute of Engineering, at El-Shorouk City, Cairo, EgyptStructural Engineering Department, Faculty of Engineering, Ain Shams University, Cairo, EgyptGeotechnical Engineering and Foundations, Civil Engineering Department, Higher Institute of Engineering, at El-Shorouk City, Cairo, EgyptGeomembranes are one of the most widely used insulation materials in various civil engineering applications. Failure due to the slippage between geomembranes and the interfacing soils was detected at some cases. This paper presents the results of a series of laboratory tests carried out to investigate the factors controlling the developed interface stresses strength between the soil and geomembranes. In order to quantify the effect of different commonly used isolation membranes on the behavior and stability of buried concrete structures, laboratory studies by using modified direct shear apparatus is performed and integrated and the reduction in the shear resistance between the soil and different types of isolation geomembranes is determined. Graded sand with well-rounded particles was used in the experimental program. Shear tests were conducted under a normal stress range of about 25-100 kPa. The effect of the geomembranes on the peak and residual interface shear strengths is highlighted. Test’s results indicate development of peak interface shear resistance at a small strain and constant residual interface shear resistance at large strain. It was found that the developed peak and residual interface friction angles between the sand and the geomembranes interfaces ranged from 59 % to 82 % of the corresponding peak and residual interface friction angles between sand and un-protected concrete.https://erjeng.journals.ekb.eg/article_271103_d8d8a47c10b5bf2d0e3f515cfb5a17dc.pdfgeomembranesinterface shearsanddry condition |
| spellingShingle | Ahmed Rashed Tamer Sorour Ahmed Elsayed Study of the Effect of Geomembranes on the Interaction between the Soil and Underground Structures Journal of Engineering Research - Egypt geomembranes interface shear sand dry condition |
| title | Study of the Effect of Geomembranes on the Interaction between the Soil and Underground Structures |
| title_full | Study of the Effect of Geomembranes on the Interaction between the Soil and Underground Structures |
| title_fullStr | Study of the Effect of Geomembranes on the Interaction between the Soil and Underground Structures |
| title_full_unstemmed | Study of the Effect of Geomembranes on the Interaction between the Soil and Underground Structures |
| title_short | Study of the Effect of Geomembranes on the Interaction between the Soil and Underground Structures |
| title_sort | study of the effect of geomembranes on the interaction between the soil and underground structures |
| topic | geomembranes interface shear sand dry condition |
| url | https://erjeng.journals.ekb.eg/article_271103_d8d8a47c10b5bf2d0e3f515cfb5a17dc.pdf |
| work_keys_str_mv | AT ahmedrashed studyoftheeffectofgeomembranesontheinteractionbetweenthesoilandundergroundstructures AT tamersorour studyoftheeffectofgeomembranesontheinteractionbetweenthesoilandundergroundstructures AT ahmedelsayed studyoftheeffectofgeomembranesontheinteractionbetweenthesoilandundergroundstructures |