American Society of Civil Engineers


3D Numerical Modeling of Hexagonal Wire Mesh Reinforced Embankment on Soft Bangkok Clay


by Cholachat Rujikiatkamjorn, (Senior Lecturer, Centre for Geomechanics and Railway Engineering, School of Civil, Mining and Environmental Engineering, Faculty of Engineering, University of Wollongong, NSW 2522, Australia), Buddhima Indraratna, (Professor, Centre for Geomechanics and Railway Engineering, School of Civil, Mining and Environmental Engineering, Faculty of Engineering, University of Wollongong, NSW 2522, Australia E-mail: indra@uow.edu.au), and Dennes T. Bergado, (Professor, School of Engineering and Technology, Asian Institute of Technology, P.O. Box 4, Klong Luang, Pathumthani 12120, Thailand)
Section: Laboratory and Physical Modeling for Use in Numerical Analysis, pp. 2263-2272, (doi:  http://dx.doi.org/10.1061/9780784412121.232)

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Document type: Conference Proceeding Paper
Part of: GeoCongress 2012: State of the Art and Practice in Geotechnical Engineering
Abstract: The numerical modeling of the full scale test embankment reinforced with hexagonal wire mesh was analyzed using finite difference method under threedimensional (3D) conditions to reflect the actual embankment dimensions. In the analysis, the 3D finite difference simulation using 5 times of vertical laboratory permeability can reasonably predict its behavior on soft foundation. In comparison with the field measurements, the predicted results from 3D analysis reasonably agreed with measured data including vertical settlement, excess pore pressures and lateral displacements. Thus, the actual embankment geometry and the selected permeability influenced the behavior of the reinforced embankment constructed on soft ground foundation. The simulated maximum tension lines in the reinforcements tend to follow the coherent gravity failure plane. The maximum tension at the bottom of the reinforced embankment occurred near midpoint portion away from the facing due to the settlement profile of the soft soil foundation.


ASCE Subject Headings:
Three-dimensional models
Embankments
Clays