ABSTRACT
The probabilistic safety of anchored sheet-piling is discussed with reference to a dry cohesionless soil characterized by a mean angle of shear strength varying between 30° and 35°. The analysis was made by means of a 2nd level approximate computation method (the Rosenblueth or Point Estimation Method). Coefficient of variation were drawn from the literature. The stability of the embedded wall portion or, alternatively, the upper soil anchor were used as the standards to estimate failure probability. Our study was further extended to cover the increments of sheet-pile penetration and anchor rod oversizing required to obtain pre-established values of the reliability index. This was done by assuming a definite value for the fluctuation scale of the strength parameter ϕ.
