Stability Analysis of Reservoir Bank Slopes Under Different Water Levels Based on Flac3D
In order to explore the deformation characteristics,potential damage modes and stability characteristics of the bank pile slope under different water levels,this paper establishes a three-dimensional bank slope model based on a bank slope management project,and analyzes the displacements,stability coefficients,and maximum shear strain increments of bank slopes under different working conditions through the self-programmed FISH func-tion of the strength reduction method based on the sudden change of the slope displacements as a criterion.The results show that the slope of the bank pile is greatly affected by the water level disturbance,under the bottom wa-ter level condition,the plastic zone does not change much,and the stability coefficient is 1.46,which is 7.0%low-er than that of the deadweight condition;and under the high water level condition,the slope enters into the flow-plasticized state,the stability coefficient is 1.32,which is 16.0%lower than that of the deadweight condition,al-though it meets the specification requirements,the safety surplus is not much,and it is recommended to treat the slope of this pile.
bank slopewater levelseepage-stress couplingslope stability
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