Study on the influence of rainfall infiltration on the stability of dump slope
Yongqiang Ren, Xiangmei Chen, Yan Shang
Abstract
The present strength reduction finite element methods usually only reduce strength parameters, which result in the deformation state of earth-rock aggregate slope are different from the practical ones. The article holds that under rainfall infiltration, not only the strength parameters of earth-rock aggregate slope will reduce, but also the deformation parameters will also change with the changing of soils stress levels and strength parameters. Using the developed FDM (Finite Difference Method), the numerical simulation for earth-rock aggregate slope deformation under different rainfall infiltration depths are conducted, and the results of numerical calculation are compared with those of the laboratory model tests. Then the influence law of rainfall infiltration depths on the road-embankment slope stability and sliding arc changing characteristics are analyzed by strength reduction finite element methods.