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Geosynthetic-Reinforced and Stone Column-Supported Embankments: Numerical and Stability Study
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Geosynthetic-Reinforced and Stone Column-Supported Embankments: Numerical and Stability Study
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Journal Article
Geosynthetic-Reinforced and Stone Column-Supported Embankments: Numerical and Stability Study
2024
Overview
Although stone-column embankments on soft ground have been widely studied, there is a limited number of studies in the literature in which overall stability is analysed when geosynthetic reinforcement is also incorporated at the embankment base. In the paper, a finite element-based stability analysis method is proposed and applied to analyse overall stability of geosynthetic-reinforced and stone column-supported embankments on soft soils. Fully mechanical-hydraulic coupled analyses are performed, a critical state model is used for soil constitutive behaviour and hardening non-linear elastoplastic models are incorporated to model the geosynthetics and soil-geosynthetic interfaces. Comparisons of the proposed method with other published methods are included in which the influence of the geosynthetic constitutive curve and of the area replacement factor of stone columns are analysed. Regarding the geosynthetic constitutive curve, its influence on other key variables—namely, excess pore pressure, geosynthetic tensile force, stress concentration ratio, settlement and horizontal displacement—is also analysed.
Publisher
Springer International Publishing,Springer Nature B.V
