Geogrid reinforcement may be used taking account of slippage resistance and wall movement. The steel grid stresses were below yielding, while the geogrid experienced significant stresses without rupture. Soil cohesion has a minor effect, while the movement increased by 13–20 mm for flexible geogrid reinforced walls compared with the steel grid walls. Results showed that the wall movement is affected by soil pore pressure and reinforcement integrity and length, and unaffected by concrete strength. The effects of pore pressure, soil cohesion, earth reinforcement type and length, breakage/slippage of reinforcement and concrete strength, were examined. In this study, 3-D numerical modeling involving an existing MSE wall was undertaken to investigate various wall parameters. However, in some cases, excessive movement and even complete dislocation of the panels have been observed. The panels are designed to have some lateral movement. They have precast concrete panels attached to earth reinforcement. Mechanically stabilized earth (MSE) retaining walls are popular for highway bridge structures.
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