- document
-
MontellĂ , E. P. (author), Chauchat, J. (author), Bonamy, C. (author), Weij, D. (author), Keetels, G.H. (author), Hsu, T. J. (author)In submerged sandy slopes, soil is frequently eroded as a combination of two main mechanisms: breaching, which refers to the retrogressive failure of a steep slope forming a turbidity current, and instantaneous sliding wedges, known as shear failure, that also contribute to shape the morphology of the soil deposit. Although there are several...journal article 2023
- document
-
Weij, D. (author)Breaching is an important production mechanism for stationary suction dredgers. It is a process occurring in submerged sandy slopes, which mostly occurs in dense sandy soils with a low permeability. The process is initiated by the formation of a slope under water, whose angle is steeper than the internal friction angle, called the breach face....doctoral thesis 2020
- document
-
Weij, D. (author), Keetels, G.H. (author), Goeree, J.C. (author), van Rhee, C. (author)To model submarine flows of granular materials we propose an extension of the drift-flux approach. The extended model is able to represent dilute suspensions as well as dense granular flows. The dense granwular flow is modelled as a Herschel–Bulkley fluid, with a yield stress that depends on the dispersed phase pressure. Qualitative numerical...journal article 2016