降雨入渗条件下锚固边坡稳定性数值分析

numerical simulation model of a highway slop was established by applying finite difference software FLAC2D. Analysised the stability of the slope whether supported with bolts or not under rainfall infiltration with different rainfall patterns. The results showed that the saturation region of the slope was the largest when the rainfall intensity increased of the rainfall pattern, following with the uniform rainfall intensity and rainfall intensity decreased. The displacement of the slope was the largest when the rainfall intensity decreased of the rainfall pattern at the same elevation before the slope supported with bolts, following with the uniform rainfall intensity and rainfall intensity increased. There was a significant decreased in the displacement and a significant increased in the factor of safety of the slope after the slope supported with bolts. Rainfall infiltration caused a increase in axial force and shear force of the bolts. Axial force and shear force of the bolts were similar under rainfall infiltration with different rainfall patterns.