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Numerical Modeling of Geosynthetic-Reinforced Pile-Supported Embankment Systems
In recent years, Geosynthetics and piles have become the commonly applied method of embankment reinforcement, giving rise to what is typically known as Geosynthetic-reinforced pile-supported embankment. The reinforced earth platform includes one or more layers of Geosynthetics at the base of the embankment. With this method, the weight of the embankment and the surcharge are largely transferred onto the piles so that the soft soil between the piles carry less load and the embankment settlement is reduced. A numerical study was conducted to investigate the stress distributions and the transfer behavior of the Geosynethic-reinforced embankments on deep-composite columns. Five influencing factors were evaluated which included the elastic modulus of the deep-composite columns, the elastic modulus of the soft soil, the tensile stiffness of the Geosynthetics, the spacing of the columns, and the number of Geosynthetics. Numerical results suggested that the elastic modulus ratio of the deep-mixed columns to soft soil has great influence on the average stress concentration ratio of the piles to the soft soil.
Numerical Modeling of Geosynthetic-Reinforced Pile-Supported Embankment Systems
In recent years, Geosynthetics and piles have become the commonly applied method of embankment reinforcement, giving rise to what is typically known as Geosynthetic-reinforced pile-supported embankment. The reinforced earth platform includes one or more layers of Geosynthetics at the base of the embankment. With this method, the weight of the embankment and the surcharge are largely transferred onto the piles so that the soft soil between the piles carry less load and the embankment settlement is reduced. A numerical study was conducted to investigate the stress distributions and the transfer behavior of the Geosynethic-reinforced embankments on deep-composite columns. Five influencing factors were evaluated which included the elastic modulus of the deep-composite columns, the elastic modulus of the soft soil, the tensile stiffness of the Geosynthetics, the spacing of the columns, and the number of Geosynthetics. Numerical results suggested that the elastic modulus ratio of the deep-mixed columns to soft soil has great influence on the average stress concentration ratio of the piles to the soft soil.
Numerical Modeling of Geosynthetic-Reinforced Pile-Supported Embankment Systems
Zhang, Gefen (author) / Yan, Li (author)
GeoHunan International Conference 2011 ; 2011 ; Hunan, China
2011-05-16
Conference paper
Electronic Resource
English
Numerical Modeling of Geosynthetic-Reinforced Pile-Supported Embankment Systems
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