ROTATIONAL STABILITY OF NARROW-CRESTED REINFORCED EMBANKMENTS ON SOFTSOILS

The design of reinforced embankments on soft soils is usually governed by their rotational stability. For wide-crested embankments, the auth ors recently developed simple solutions which can be used to determine the critical slip circle and the maximum required reinforcement force . However, when the failure arc intersects the side slope, as in the c ase of narrow-crested embankments, and also for the determination of t he maximum required reinforcement force at different points on the rei nforcement, a trial-and-error approach is necessary. Solutions develop ed for this type of problem are presented in this paper. The results o btained by the present solutions and the other solutions are compared. for four cases of embankments.