چكيده لاتين :
A new engineering model, the Comprehensive Scour Model (CSM), has been developed for
prediction of erosion in fractured media, such as rock, concrete or clays (Bollaert, 2004; Bollaert and
Schleiss, 2005). The model is physically-based and relies on break-up by progressive fracturing of
existing discontinuities as well as on subsequent dynamic ejection of so formed loose elements. It is
not only able to predict the ultimate state of scour, but also the time evolution of the phenomenon as a
function of flood duration and discharge. In the following, the model is applied to scour formation of
the plunge pool downstream of Kariba Dam (Zambia-Zimbabwe). Emphasis is given on the influence
of rock mass resistance and flood duration uncertainties on scour evolution as a function of time.
