Evaluation of Protective Filter Erosion Boundaries

The objectives of the experiments described in this paper are to provide insight into the self-healing capabilities of protective filters used in embankment dams and to verify the results and reproducibility of previous research. Existing dams may have filters that do not meet Sherard’s No Erosion Filter (NEF) criteria; however, the filters may still perform adequately after “some” erosion of the base material into the filter. The research documented in this paper will focus on the soil retention aspect of protective filters.