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Numerical Analysis of Load Transfer Mechanisms Within Embankment Reinforced by Geosynthetic Above Cavity
https://orcid.org/http://orcid.org/0000-0002-5757-0376
Geosynthetics have been widely used as a specific reinforcement to support embankments constructed in areas subject to localized sinkholes. The solution works based on several mechanisms such as soil expansion, effect of membrane, friction, and load transfer. However, the load transfer mechanisms have been underestimated due to simple assumptions used in the common existing design methods. The study develops a numerical model to approve the presence of arching within the embankment reinforced by geosynthetics over the cavity. Based on a referenced study that combined experimental and numerical works, the finite element method (FEM) has been used to develop a model of cavity problems. Thereby, the performance of different numerical methods and the ability to reproduce a full-scale experiment have been illustrated according to the analysis of displacement and load distribution acting within the embankment platform over the cavity. The influences on the expansion and the load transfer mechanisms acting inside the reinforcement system have been clarified by a parametric study considering surcharge, embankment height, and friction angle of the embankment.
Numerical Analysis of Load Transfer Mechanisms Within Embankment Reinforced by Geosynthetic Above Cavity
https://orcid.org/http://orcid.org/0000-0002-5757-0376
Geosynthetics have been widely used as a specific reinforcement to support embankments constructed in areas subject to localized sinkholes. The solution works based on several mechanisms such as soil expansion, effect of membrane, friction, and load transfer. However, the load transfer mechanisms have been underestimated due to simple assumptions used in the common existing design methods. The study develops a numerical model to approve the presence of arching within the embankment reinforced by geosynthetics over the cavity. Based on a referenced study that combined experimental and numerical works, the finite element method (FEM) has been used to develop a model of cavity problems. Thereby, the performance of different numerical methods and the ability to reproduce a full-scale experiment have been illustrated according to the analysis of displacement and load distribution acting within the embankment platform over the cavity. The influences on the expansion and the load transfer mechanisms acting inside the reinforcement system have been clarified by a parametric study considering surcharge, embankment height, and friction angle of the embankment.
Numerical Analysis of Load Transfer Mechanisms Within Embankment Reinforced by Geosynthetic Above Cavity
https://orcid.org/http://orcid.org/0000-0002-5757-0376
Geosynthetics have been widely used as a specific reinforcement to support embankments constructed in areas subject to localized sinkholes. The solution works based on several mechanisms such as soil expansion, effect of membrane, friction, and load transfer. However, the load transfer mechanisms have been underestimated due to simple assumptions used in the common existing design methods. The study develops a numerical model to approve the presence of arching within the embankment reinforced by geosynthetics over the cavity. Based on a referenced study that combined experimental and numerical works, the finite element method (FEM) has been used to develop a model of cavity problems. Thereby, the performance of different numerical methods and the ability to reproduce a full-scale experiment have been illustrated according to the analysis of displacement and load distribution acting within the embankment platform over the cavity. The influences on the expansion and the load transfer mechanisms acting inside the reinforcement system have been clarified by a parametric study considering surcharge, embankment height, and friction angle of the embankment.
Numerical Analysis of Load Transfer Mechanisms Within Embankment Reinforced by Geosynthetic Above Cavity
Transp. Infrastruct. Geotech.
Pham, Minh-Tuan (author) / Vo, Dai-Nhat (author) / Nguyen, Dinh-Tu (author) / Do, Ngoc-Anh (author)
Transportation Infrastructure Geotechnology ; 10 ; 311-328
2023-04-01
18 pages
Article (Journal)
Electronic Resource
English
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