Stability Analysis of Geotextile Reinforced Marine Causeways

The use of geotextile tubes as retaining systems, geotechnical application, and coastal protection in temporary and permanent structures is gaining lots of concern throughout the recent decades. In the present study, computer software, ABAQUS, was used to investigate the stability of geotubes as soi...

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Main Authors: Heba Koura, Ehab Tolba, Elsayed Galal
Format: Article
Language:English
Published: Port Said University 2020-09-01
Series:Port Said Engineering Research Journal
Subjects:
Online Access:https://pserj.journals.ekb.eg/article_75745_b4650893790e48c88c596b1b0f291597.pdf
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author Heba Koura
Ehab Tolba
Elsayed Galal
author_facet Heba Koura
Ehab Tolba
Elsayed Galal
author_sort Heba Koura
collection DOAJ
description The use of geotextile tubes as retaining systems, geotechnical application, and coastal protection in temporary and permanent structures is gaining lots of concern throughout the recent decades. In the present study, computer software, ABAQUS, was used to investigate the stability of geotubes as soil retaining structure for marine causeway. Nine scenarios comprised of two geotubes lining the side of a 1:1 slope causeway were modeled to explore their effect on the causeway displacement under surcharge loads. The stability of the system was investigated through using different deformed shapes of geotubes. These deformed shapes were obtained by using different pumping pressures (0.0, 5.0, and 20.0 kPa). Moreover, the effect of tidal range was studied by defining different water depths (0.5, 1.5 and 2.5 m measured from the causeway toe). The results showed that the use of geoextile tubes subjected to pumping pressure of 0.0 and 5.0 kPa improves the deformation behavior of the causeway with water depths of 0.5 and 1.5 m. While, the deformation was aggravated with water depth of 2.5 m when using geotextile tubes subjected to pumping pressures of 0.0 , 5.0 , and 20.0 kPa. On the other hand, the model ceased when applying pumping pressure of 20.0 kPa with water depths of 0.50 and 1.50 m due to the failure of the upper tube. Therefore, it is recommended to use the geotextile tubes subjected to pumping pressure of 0.0 and 5.0 kPa in case of lower water depths only.
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spelling doaj.art-a67a4b80c21b434cae16c36583f39c1b2023-10-23T05:58:57ZengPort Said UniversityPort Said Engineering Research Journal1110-66032536-93772020-09-01242313910.21608/pserj.2020.23793.103175745Stability Analysis of Geotextile Reinforced Marine CausewaysHeba Koura0Ehab Tolba1Elsayed Galal2Civil Engineer at Suez Canal AuthorityCivil Engineering Department, Faculty of Engineering, Port Said University, Port Said, EgyptCivil Engineering Department, Faculty of Engineering, Port Said University, Port Said, EgyptThe use of geotextile tubes as retaining systems, geotechnical application, and coastal protection in temporary and permanent structures is gaining lots of concern throughout the recent decades. In the present study, computer software, ABAQUS, was used to investigate the stability of geotubes as soil retaining structure for marine causeway. Nine scenarios comprised of two geotubes lining the side of a 1:1 slope causeway were modeled to explore their effect on the causeway displacement under surcharge loads. The stability of the system was investigated through using different deformed shapes of geotubes. These deformed shapes were obtained by using different pumping pressures (0.0, 5.0, and 20.0 kPa). Moreover, the effect of tidal range was studied by defining different water depths (0.5, 1.5 and 2.5 m measured from the causeway toe). The results showed that the use of geoextile tubes subjected to pumping pressure of 0.0 and 5.0 kPa improves the deformation behavior of the causeway with water depths of 0.5 and 1.5 m. While, the deformation was aggravated with water depth of 2.5 m when using geotextile tubes subjected to pumping pressures of 0.0 , 5.0 , and 20.0 kPa. On the other hand, the model ceased when applying pumping pressure of 20.0 kPa with water depths of 0.50 and 1.50 m due to the failure of the upper tube. Therefore, it is recommended to use the geotextile tubes subjected to pumping pressure of 0.0 and 5.0 kPa in case of lower water depths only.https://pserj.journals.ekb.eg/article_75745_b4650893790e48c88c596b1b0f291597.pdfgeotextile tubespumping pressuremarine causewaysabaqusslope stability
spellingShingle Heba Koura
Ehab Tolba
Elsayed Galal
Stability Analysis of Geotextile Reinforced Marine Causeways
Port Said Engineering Research Journal
geotextile tubes
pumping pressure
marine causeways
abaqus
slope stability
title Stability Analysis of Geotextile Reinforced Marine Causeways
title_full Stability Analysis of Geotextile Reinforced Marine Causeways
title_fullStr Stability Analysis of Geotextile Reinforced Marine Causeways
title_full_unstemmed Stability Analysis of Geotextile Reinforced Marine Causeways
title_short Stability Analysis of Geotextile Reinforced Marine Causeways
title_sort stability analysis of geotextile reinforced marine causeways
topic geotextile tubes
pumping pressure
marine causeways
abaqus
slope stability
url https://pserj.journals.ekb.eg/article_75745_b4650893790e48c88c596b1b0f291597.pdf
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