Effects of Geofoam Panels on Static Behavior of Cantilever Retaining Wall

Geofoam is one of the geosynthetic products that can be used in geotechnical applications. According to researches, expanded polystyrene (EPS) geofoam placed directly against a rigid retaining wall has been proposed as a strategy to reduce static loads on the wall. This study employed a finite diffe...

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Main Authors: Navid Hasanpouri Notash, Rouzbeh Dabiri
Format: Article
Language:English
Published: Wiley 2018-01-01
Series:Advances in Civil Engineering
Online Access:http://dx.doi.org/10.1155/2018/2942689
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author Navid Hasanpouri Notash
Rouzbeh Dabiri
author_facet Navid Hasanpouri Notash
Rouzbeh Dabiri
author_sort Navid Hasanpouri Notash
collection DOAJ
description Geofoam is one of the geosynthetic products that can be used in geotechnical applications. According to researches, expanded polystyrene (EPS) geofoam placed directly against a rigid retaining wall has been proposed as a strategy to reduce static loads on the wall. This study employed a finite difference analysis using a 2-D FLAC computer program by considering yielding and nonyielding states for retaining walls to explore the effectiveness of geofoam panels in improving the static performance of cantilever retaining walls. Retaining walls at heights of 3, 6, and 9 meters and geofoam panels with densities of 15, 20, and 25 (kg/m3) at three relative thicknesses of t/H = 0.05, 0.2, and 0.4 were modelled in this numerical study. In addition, the performance of the double EPS buffer system, which involves two vertical geofoam panels, in retaining walls’ stability with four panel spacing (50, 100, 150, and 200 cm) was also evaluated in this research. The results showed that use of EPS15 with density equal to 15 (kg/m3) which has the lowest density among other geofoam panels has a significant role in reduction of lateral stresses, although the performance of geofoam in nonyielding retaining walls is better than yielding retaining walls.
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spelling doaj-art-c84737f997c64df6803a7c654fa35c7e2025-02-03T05:52:06ZengWileyAdvances in Civil Engineering1687-80861687-80942018-01-01201810.1155/2018/29426892942689Effects of Geofoam Panels on Static Behavior of Cantilever Retaining WallNavid Hasanpouri Notash0Rouzbeh Dabiri1Department of Civil Engineering, East Azerbaijan Science and Research Branch, Islamic Azad University, Tabriz, IranDepartment of Civil Engineering, Tabriz Branch, Islamic Azad University, Tabriz, IranGeofoam is one of the geosynthetic products that can be used in geotechnical applications. According to researches, expanded polystyrene (EPS) geofoam placed directly against a rigid retaining wall has been proposed as a strategy to reduce static loads on the wall. This study employed a finite difference analysis using a 2-D FLAC computer program by considering yielding and nonyielding states for retaining walls to explore the effectiveness of geofoam panels in improving the static performance of cantilever retaining walls. Retaining walls at heights of 3, 6, and 9 meters and geofoam panels with densities of 15, 20, and 25 (kg/m3) at three relative thicknesses of t/H = 0.05, 0.2, and 0.4 were modelled in this numerical study. In addition, the performance of the double EPS buffer system, which involves two vertical geofoam panels, in retaining walls’ stability with four panel spacing (50, 100, 150, and 200 cm) was also evaluated in this research. The results showed that use of EPS15 with density equal to 15 (kg/m3) which has the lowest density among other geofoam panels has a significant role in reduction of lateral stresses, although the performance of geofoam in nonyielding retaining walls is better than yielding retaining walls.http://dx.doi.org/10.1155/2018/2942689
spellingShingle Navid Hasanpouri Notash
Rouzbeh Dabiri
Effects of Geofoam Panels on Static Behavior of Cantilever Retaining Wall
Advances in Civil Engineering
title Effects of Geofoam Panels on Static Behavior of Cantilever Retaining Wall
title_full Effects of Geofoam Panels on Static Behavior of Cantilever Retaining Wall
title_fullStr Effects of Geofoam Panels on Static Behavior of Cantilever Retaining Wall
title_full_unstemmed Effects of Geofoam Panels on Static Behavior of Cantilever Retaining Wall
title_short Effects of Geofoam Panels on Static Behavior of Cantilever Retaining Wall
title_sort effects of geofoam panels on static behavior of cantilever retaining wall
url http://dx.doi.org/10.1155/2018/2942689
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AT rouzbehdabiri effectsofgeofoampanelsonstaticbehaviorofcantileverretainingwall