The Systematic Arching Theory Applied to the Stability Analysis of Embankments

A new theory describing the detailed stress distributions developed in wedges of granular materials resting on foundations of varying stiffness is briefly outlined. The application of this theory to the design of earth and rock-fill dams is discussed in the light of available evidence concerning pressure measurements made on model and full size embankments. The evidence presented indicates that the theoretical predictions are substantiated by a wide range of field experience. Two-dimensional stability analysis is then considered in terms of: (a) collapse over an assumed surface of failure; (b) a point-to-point stress analysis. Finally the implications of the theoretical analyses as they affect the design and construction of embankments are discussed.