Soil erosion on the mix of sand-kaolin: The influence of soil parameters and hydraulic parameters

Abstract

     This work presents the influence of soil parameters on erosion parameters of sand-kaolin an the influence of hydraulic parameters on the result of erosion. The tests were carried out on the mix of sand-kaolin by using the Jet Erosion Test. It found that the erosion resistance increases with an increase of dry density, and the influence of compaction water content on erosion is negligible. For influence of hydraulic parameters, it found that the erosion parameters (erosion coefficient kD and critical shear stress τc) deduced from theoretical head hydraulic and real head hydraulic are not similar, and the head hydraulic influence only the erosion coefficient but not critical shear stress.