Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Effects of soil arching on behavior of pile-supported railway embankment: 2D FEM approach
https://orcid.org/0000-0001-9678-0950
https://orcid.org/0000-0002-1538-3396
https://orcid.org/0000-0002-7920-6946
Abstract The construction of railway embankment on soft soil is a challenging task for practitioners. In the past, several approaches have been employed in practice to overcome this problem. Pile foundation is considered one of the reliable solutions for soft ground. In a pile-supported railway embankment, soil arching plays a vital role in the efficient load transfer to the piles. In this study, the soil arching phenomenon in a granular embankment subjected to train induced loading is demonstrated based on the two-dimensional (2D) finite element modeling approach. A 2D plane strain idealization is used to convert a real three-dimensional (3D) case into 2D. The effects of the piled railway embankment properties on soil arching are investigated. It is found that pile modulus, embankment modulus and friction angle affect the arching mechanism significantly. Pile spacing (s) variation affects soil arching (i.e., the arching zone can be increased by reducing s). In addition, the height and shape of arching are studied. A comparison with the available analytical design methods for embankments is presented which indicates inconsistencies in the previously published results.
Effects of soil arching on behavior of pile-supported railway embankment: 2D FEM approach
https://orcid.org/0000-0001-9678-0950
https://orcid.org/0000-0002-1538-3396
https://orcid.org/0000-0002-7920-6946
Abstract The construction of railway embankment on soft soil is a challenging task for practitioners. In the past, several approaches have been employed in practice to overcome this problem. Pile foundation is considered one of the reliable solutions for soft ground. In a pile-supported railway embankment, soil arching plays a vital role in the efficient load transfer to the piles. In this study, the soil arching phenomenon in a granular embankment subjected to train induced loading is demonstrated based on the two-dimensional (2D) finite element modeling approach. A 2D plane strain idealization is used to convert a real three-dimensional (3D) case into 2D. The effects of the piled railway embankment properties on soil arching are investigated. It is found that pile modulus, embankment modulus and friction angle affect the arching mechanism significantly. Pile spacing (s) variation affects soil arching (i.e., the arching zone can be increased by reducing s). In addition, the height and shape of arching are studied. A comparison with the available analytical design methods for embankments is presented which indicates inconsistencies in the previously published results.
Effects of soil arching on behavior of pile-supported railway embankment: 2D FEM approach
https://orcid.org/0000-0001-9678-0950
https://orcid.org/0000-0002-1538-3396
https://orcid.org/0000-0002-7920-6946
Abstract The construction of railway embankment on soft soil is a challenging task for practitioners. In the past, several approaches have been employed in practice to overcome this problem. Pile foundation is considered one of the reliable solutions for soft ground. In a pile-supported railway embankment, soil arching plays a vital role in the efficient load transfer to the piles. In this study, the soil arching phenomenon in a granular embankment subjected to train induced loading is demonstrated based on the two-dimensional (2D) finite element modeling approach. A 2D plane strain idealization is used to convert a real three-dimensional (3D) case into 2D. The effects of the piled railway embankment properties on soil arching are investigated. It is found that pile modulus, embankment modulus and friction angle affect the arching mechanism significantly. Pile spacing (s) variation affects soil arching (i.e., the arching zone can be increased by reducing s). In addition, the height and shape of arching are studied. A comparison with the available analytical design methods for embankments is presented which indicates inconsistencies in the previously published results.
Effects of soil arching on behavior of pile-supported railway embankment: 2D FEM approach
Meena, Naveen Kumar (Autor:in) / PhD Nimbalkar, Sanjay (Autor:in) / PhD Fatahi, Behzad (Autor:in) / PhD Yang, Gui (Autor:in)
14.04.2020
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
DEM Analysis of Soil Arching of Pile Supported Embankment
| British Library Online Contents | 2014
Finite Element Modeling of Soil Arching in Pile Supported Embankment: 2D Approach
| Springer Verlag | 2019