For calculation of soil slope stability

the slice method as a simple and practical method is widely applied to many engineering projects. The traditional slice method usually adopts vertical slice

while the slice method based on gradient slice and equal central angle adopts gradient slice

which makes the hypotheses of forces between the slices become more reasonable. Besides

with the redefined stress level safety factor

equilibrium equations can be solved more simply and quickly

and the differences of slices’ stress state will be reflected in the calculated result.