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International Journal of Geosynthetics and Ground Engineering
Erschienen in: International Journal of Geosynthetics and Ground Engineering 3/2021

01.09.2021 | Original Paper

A Numerical Study on the Role of EPS Geofoam in Reducing Earth Pressure on Retaining Structures Under Dynamic Loading

verfasst von: Muhammad Imran Khan, Mohamed A. Meguid

Erschienen in: International Journal of Geosynthetics and Ground Engineering | Ausgabe 3/2021

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Abstract

The magnitude of lateral earth pressure plays an important role in the analysis and design of earth retaining structures. Expanded polystyrene (EPS) geofoam panels have been successfully used in reducing lateral thrust on walls under static loading condition. The presence of geofoam panels between a rigid wall and the backfill soil allows for controlled deformation to develop, which leads to the mobilization of soil shear strength. When subjected to dynamic loading, the magnitude of earth pressure acting on a rigid wall can become significantly larger. In this study, a finite element model is developed to investigate the effectiveness of installing geofoam buffer behind a rigid retaining wall on the seismic lateral thrust induced by the backfill material. A parametric study was then conducted to investigate the effect of geofoam density, relative thickness of the geofoam with respect to the wall height and the friction angle of the backfill soil on the effectiveness of this technique to reduce the impact of seismic events on the stability of the wall. Results showed that provision of geofoam behind rigid non-yielding retaining wall can provide 10–40% reduction in seismic thrust depending on the geofoam density, relative thickness and frictional properties of the backfill soil.
Vorheriger Artikel Behaviour of jute and bamboo geocell with additional basal mat filled with different infill materials overlaying soft subgrade
Nächster Artikel Evaluation of Stability of Embankment Constructed on Soft Consolidating Soil with Lime–CFG Composite Column System

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Metadaten
Titel
A Numerical Study on the Role of EPS Geofoam in Reducing Earth Pressure on Retaining Structures Under Dynamic Loading
verfasst von
Muhammad Imran Khan
Mohamed A. Meguid
Publikationsdatum
01.09.2021
Verlag
Springer International Publishing
Erschienen in
International Journal of Geosynthetics and Ground Engineering / Ausgabe 3/2021
Print ISSN: 2199-9260
Elektronische ISSN: 2199-9279
DOI
https://doi.org/10.1007/s40891-021-00304-8

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