According to the defect of the embankment due to the river scour effect

a coupling analysis method of the river scour prediction and the slope stability analysis is established. First

based on the neural network method

the deformation prediction of the embankment and riverbed with river scour effect are made and the geometric shape of the embankment slope toe after the river scour is got. Then，the stability analysis and the stressstrain analysis of the slope are carried on to get the overall stability evaluation and the deformation features of the embankment with river scour effect. The established model and the efficiency of the adopted method have been verified by the calculate of the typical section of the BeiJiang embankment. It has important theoretical basis and practical value for the operation management of the important manmade embankment.