2D and 3D simulation of geogrid-reinforced geocomposite material embankment on soft Bangkok clay

ABSTRACT: A full-scale test embankment, 6.0 m high, was constructed on soft Bangkok clay using a rubber tire chip–sand mixture as a geocomposite material reinforced with geogrid reinforcement with concrete block facing in the middle portion of the embankment. Silty sand backfill with rock-filled gabion facing were utilized at the sloping sides. The vertical and lateral deformations as well as excess pore pressures were monitored for 1 year. This study attempted to simulate the behavior of the full-scale test embankment by two-dimensional (2D) and three-dimensional (3D) numerical analyses. The 2D analysis was performed by PLAXIS software using undrained analysis in the construction stage and, thereafter, consolidation analysis was performed during the service stage. The 3D analysis was investigated by FLAC3D software using the same constitutive models and properties of foundation soils as published by previous researchers. Owing to the use of geocomposite material as embankment materials, the observed valu...

[1]  Siew-Ann Tan,et al.  Enhanced performance of reinforced soil walls by the inclusion of short fiber , 2005 .

[2]  Richard J. Bathurst,et al.  Reinforcement loads in geosynthetic walls and the case for a new working stress design method , 2005 .

[3]  D. T. Bergado,et al.  Numerical simulation and sensitivity analyses of full-scale test embankment with reinforced lightweight geomaterials on soft Bangkok clay , 2008 .

[4]  R. Lewis,et al.  Associated and non-associated visco-plasticity and plasticity in soil mechanics , 1975 .

[5]  Sean D. Hinchberger,et al.  Geosynthetic reinforced embankments on soft clay foundations: predicting reinforcement strains at failure , 2003 .

[6]  Songyu Liu,et al.  A combined DJM-PVD method for soft ground improvement , 2008 .

[7]  A novel approach to estimating the bearing capacity stability of geosynthetic reinforced retaining walls constructed on yielding foundations , 2005 .

[8]  Jinchun Chai,et al.  FE ANALYSIS OF GRID REINFORCED EMBANKMENT SYSTEM ON SOFT BANGKOK CLAY , 1995 .

[9]  D. T. Bergado,et al.  Finite element modeling of hexagonal wire reinforced embankment on soft clay , 2000 .

[10]  D. T. Bergado,et al.  Limit Equilibrium Method Back Analyses of Geotextile-Reinforced Embankments on Soft Bangkok Clay – A Case Study , 2002 .

[11]  R. Bathurst,et al.  Behaviour of geosynthetic reinforced soil retaining walls using the finite element method , 1995 .

[12]  R. K. Rowe,et al.  Influence of Creep and Stress-Relaxation of Geosynthetic Reinforcement on Embankment Behaviour , 2001 .

[13]  A. Fakher,et al.  Development of Horizontal Slice Method for seismic stability analysis of reinforced slopes and walls , 2006 .

[14]  Balasingam Muhunthan,et al.  Numerical procedures for deformation calculations in the reinforced soil walls , 2006 .

[15]  Ian Smith,et al.  Three-dimensional FE analysis of a nailed soil wall curved in plan , 1997 .

[16]  D. T. Bergado,et al.  The interaction mechanism and behavior of hexagonal wire mesh reinforced embankment with silty sand backfill on soft clay , 2003 .

[17]  Rong-Her Chen,et al.  Model tests of geocell retaining structures , 2008 .

[18]  Myoung-Soo Won,et al.  Internal deformation behavior of geosynthetic-reinforced soil walls , 2007 .

[19]  Krystyna Kazimierowicz-Frankowska,et al.  Influence of geosynthetic reinforcement on the load-settlement characteristics of two-layer subgrade , 2007 .

[20]  G. D. Skinner,et al.  Design and behaviour of geosynthetic-reinforced soil walls constructed on yielding foundations , 2003 .

[21]  D. T. Bergado,et al.  Some techniques for finite element analysis of embankments on soft ground , 1993 .

[22]  Kianoosh Hatami,et al.  Numerical Model for Reinforced Soil Segmental Walls under Surcharge Loading , 2006 .

[23]  R. Kumar,et al.  Overall slope stability of prestressed geosynthetic-reinforced embankments on soft ground , 2008 .

[24]  R. K. Rowe,et al.  Behaviour of reinforced embankments on soft rate-sensitive soils , 2002 .

[25]  D. T. Bergado,et al.  Stability Analysis of Reinforced and Unreinforced Embankments on Soft Ground , 1996 .

[26]  Kianoosh Hatami,et al.  Development and verification of a numerical model for the analysis of geosynthetic-reinforced soil segmental walls under working stress conditions , 2005 .

[27]  C. Yoo,et al.  Effect of foundation yielding on performance of two-tier geosynthetic-reinforced segmental retaining walls: a numerical investigation , 2006 .

[28]  H. I. Ling,et al.  Finite element parametric study of the behavior of segmental block reinforced-soil retaining walls , 2003 .

[29]  Jinchun Chai,et al.  PERFORMANCE OF REINFORCED EMBANKMENT ON MUAR CLAY DEPOSIT , 1993 .

[30]  Richard Varuso,et al.  Geosynthetic reinforced levee test section on soft normally consolidated clays , 2005 .

[31]  A. Skempton,et al.  A Contribution to the settlement analysis of foundations on clay , 1957 .

[32]  G. D. Skinner,et al.  Design and behaviour of a geosynthetic reinforced retaining wall and bridge abutment on a yielding foundation , 2005 .

[33]  Dennes T. Bergado,et al.  2D and 3D numerical simulations of reinforced embankments on soft ground , 2008 .

[34]  Sarah M. Springman,et al.  Full-scale field tests on geosynthetic reinforced unpaved roads on soft subgrade , 2006 .

[35]  C. H. Abdullah,et al.  Behaviour of geogrid-reinforced load transfer platforms for embankment on rammed aggregate piers , 2007 .