Investigation of Lateral Earth Pressure Acting on the Panel of High Double-face Reinforced Retaining Walls

Double-face reinforced retaining walls of 33.0 m to 55.0 m high are modeled on a centrifuge.From the top to the bottom of retaining wall,the earth pressure acting on the facing panels increases with depth and then decreases with depth.The distribution of lateral earth pressure is explained according to the failure modes of retaining wall.Furthermore,the distribution of lateral earth pressure is illustrated based on the results of site testing.It is suggested that the actual code on how to calculate the quantity and the length should be modified.