A method for estimating erosion parameters from Jet Erosion Test

Abstract

    The erosion law of soil cohesive is modeled using the excess shear stress equation, which includes two erosion parameters: the erosion coefficient (kD) and the critical shear stress (τc). Between the exist devices, a Jet Erosion Test (JET) is a standardized device available for deriving the erosion parameters of soil cohesive. The JET data are typically analyzed using a Blaisdell solution approach. A second solution approach based on direct parameter optimization to the measured erosion depth data has recently been proposed but with limited evaluation. The aims of this work were to develop a new solution (or method) to predict erosion parameters, and to compare with three approaches. A series of JET conducted in laboratory on Silty soil were used to evaluate the performance of this new solution approach