Study on distribution of working lateral soil pressures for reinforced earth retaining wall

At present,no methods for lateral soil pressure of reinforced earth retaining wall can explain the distribution of working pressure.The site tests show that the lateral soil pressure is distributed with greater value in the middle and less though at the bottom and the top.The distribution of the active and static soil pressure in the gravity retaining wall,which is obtained according to differential element method,is quite close to the site tests of the lateral soil pressure in reinforced earth retaining wall.The linear combination of the active and static soil pressure is consistent with the site test in shape,but not in values.According to soil pressure combination,lateral soil pressure model considering vertical spacing of in reinforced earth retaining wall was put forward.This paper discusseed influence coefficient of the vertical spacing of the reinforcement to the lateral soil pressure in reinforced earth retaining wall.Then the model was confirmed by the site tests and the results show the reasonability of the model.