Finite Element Analysis of Soil Arching in Piled Embankment

Springer International Publishing
Publication Type:
Challenges and Innovations in Geomechanics, 2021, 126, pp. 817-824
Issue Date:
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PS17_Sanjay Nimbalkar_iacmag.pdfAccepted version1.34 MB
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Rigid piles are used to alleviate the detrimental characteristics of soft soil. Recently, the use of piled embankments has increased by many folds, as it facilitates rapid construction without compromising on serviceability. In the piled embankment, soil arching mechanism between adjacent piles improves the load-transfer to the piles and reduces the stress applied to the soft soil. In this study, a two-dimensional plane strain finite element model is adopted to investigate the mechanism of soil arching in a piled embankment. An idealized unit cell model is used to simulate the pile-supported embankment. The effect of different characteristics of piles and embankment soil are assessed. The outcome shows that friction angle, and embankment modulus significantly affects soil arching. Inconsistency among existing design approaches in the literature is highlighted.
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