| Abstract | Department of Highway, the Bureau of Road Research and Development, Thailand constructed a full scale test embankment (6 m. height) Phitsanulok, Thailand consisting of Reinforced Steep Slope (RSS) and Mechan ically Stabilized Earth Wall (MSEW) with high strength polymeric geogrid and metallic reinforcements. One side of this embankment was reinforced with polymeric reinforcements consisting polyester (PET), Polypropylene (PP) and high density polyethylene (HDP E) and referred as reinforced steep slope (RSS), which is at an angle of 70 degrees from horizontal. The other side of the embankment was reinforced with metallic reinforcements consisting metallic strips (MS) and steel wire grids (SWG) combined with prec ast concrete panel and termed as mechanically stabilized earth wall (MSEW). The behavior of a reinforced soil slope (RSS) and mechanically stabilized earth wall (MSEW) on hard foundation were re - analyzed and compared with the simulated results from previou s studies. The sensitivity analysis was performed with varying cohesion values from 5 to 15 kPa and modulus values ranging from 10,000 to 20,000 kPa in order to obtain the suitable values related to the measured data. Thus, the FEM 2D simulated results wer e compared with the measured data. Also the FEM 2D results were compared with the FEM 2D (Nualkliang, 2011) and FEM 3D (Baral, 2012). The lateral displacements from FEM 2D underpredicted in comparison to the FEM 2D (Nualkliang, 2011) and 3D (Baral, 2012) in the RSS side. On the MSEW side the FEM 2D overpredicted in compared to the FEM 3D (Baral, 2012) and underpredicted in compared to the FEM 2D (Nualkliang, 2011) , respectively. In c ase of settlement the result from FEM 2D overpredicted in compared to bot h the FEM 2D (Nualkliang, 2011) and FEM 3D (Baral, 2012). While the results of strains obtained from FEM 2D is in good agreement with the results of strains from previou s FEM 2D (Nualkliang, 2011) and FEM 3D (Baral, 2012). Overall the lateral displacements and strains were very small in case of MSEW facing consisting of steel wire grid (SWG) and metallic strip (MS). On the other hand, the RSS deformed much more due to their lower stiffness. The comparisons of these reinforcing materials in terms of stiffnes s from highest to lowest are metallic strip (MS), steel wire grids (SWG), polypropylene (PP), high density polyethylene (HDPE) and polyester (PET). The results obtained from 2D finite element method simulation ( FEM 2D) ha ve good agreement with the field me asurements in terms of vertical and lateral deformations and strains in the reinforcements of the embankment. |