Based on the theory and calculation procedure of FLAC3D
two models are established
one for unreinforced slope
other for reinforced slope
some differences are displayed in horizontal displacement contour maps
vertical displacement contour maps and safety factors. The results show that the grouted bolts increase the safety factor and restrict the horizontal displacement; and the contours show the position of the largest displacement
the position of the slip plane and the slip vector so as to offer reference for guiding engineering construction.