Abstract:
A study of the finite element modeling of embankment on cement column in soft clay is described in this thesis. The findings were analyzed by PLAXIS program, then compared with the data from the field. The embankment was constructed at Wangnoi Power Plant, Wangnoi District, Ayudthaya Province. The varied parameters for the agreement between the finite element results and the field data were : young's modulus, permeability, and the interaction between soil and reinforcement. As a result, analytic data and the field data are similar with only small deviations in values. This is probably due to an inconsistent of material properties, the strength and cross-sec;tion of cement column. From the results of the analysis, the modified compression index and the modified swelling index in soft soil model have the small effect to the settlement because soft soil layer has been stabilized by cement column. The important parameters for simulating behavior of reinforced wall embankment on cement column were : The selection of the appropriate model, The variation of parameters of soil layer and cement column, The steps of construction, the properties of backfill and the interaction between soil and the reinforced materials. For the interface between soil and reinforcement, the direct shear mechanism generally dominates the behavior of hexagonal wire mesh reinforcement.