A Time-Scale Varying Finite Difference Method for Analyzing the Influence of Rainfall and Water Level on the Stability of a Bank Slope

A time-scale varying finite difference method (TSFDM) was proposed to analyze the influence of rainfall infiltration and water level fluctuation on stability a bank slope in Yunnan Pulang tailings pond. The obtained by TSFDM limit equilibrium (LEM) were compared. result indicates that can obtain reliable spatiotemporal variation features geotechnical parameters under different conditions. has greater impact than infiltration. In addition, safety factor decreases as shear strain rate increases weathering interface. factors all conditions are smaller one, so corresponding measures should be taken. research provides references for preventing disasters caused failure.