The deep Soil-Mixing technique consists in mixing a hydraulic binder into the soil mechanically in order to improve its properties. As far as dikes are concerned, two methods are available. The dry method which is one of these, consists in making a 1 m pre-trenched zone where cement powder is spread and the mixing tool mixes the soil and the cement with water down to a depth of 9 m from the top of the dyke. For the study of erodibility with laboratory tests, a hole erosion test apparatus is used in order to characterize the internal erosion of soils. Samples created in the laboratory as well as cored samples have been tested to get some ranges of soil-mixed responses.