Limit Analysis of Reinforced Embankment Stability

A research is made of the limit analysis of stability calculation of reinforced embankment to perfect the design method of limit analysis of reinforced embankment. Based on limit analysis plasticity theory and traditional slice method, a formula was built to calculate the safety factors about stability of the reinforced embankment. Then this formula,Dutch method, Sweden method and the method of Chinese designing standard of reinforced embankment were introduced separately to explore the influence of the factors such as unit weight, cohesion, internal friction angle, geosynthetics tensile strength and the height of embankment on reinforced embankment stability. The calculated results of the formula of this paper are close to those of Dutch method and Sweden method. So, the formula of this paper can be reasonably regarded as a method to evaluate stability of reinforced embankment, and the conclusions can provide the reference for the design of reinforced embankment.