Temperature-driven parameter reduction finite element method for slope stability analysis of earth-rockfill dam

Combining seepage finite element calculation and slope stability analysis of strength reduction finite element method,slope stability of earth-rockfill dam is analyzed.When considering the effect of seepage,the seepage field of the dam is calculated by finite element method at first;and then the position of the spill point and the saturation line at steady seepage are calculated through iteration;the seepage forces are calculated according to the hydraulic gradient.Seepage forces,dead weight,buoyancy and seismic force are loaded on the dam;the critical instability state and safety factor of the dam are calculated using temperature-driven parameter reduction finite element method.The analysis results show that the method is reasonable and efficient for slope stability analysis of earth-rockfill dam.