Sape Miedema
Articles By Sape Miedema
Experimental study on the adhesion factor of clay
A major mechanical property of clay is the adhesion factor that reflects the ratio between its cohesive and adhesive strength under different water content.
Modelling the waterjet cable trenching process on sand dunes
Cables for offshore wind farms in the North Sea are buried for protection. A highly variable seabed topography influences the trenching process in sandy soils. A model has been developed to estimate the influence of sand dunes on the trenching process.
Can a preliminary model describe CSD spillage due to centrifugal advection?
Depending on its size and installed power, a Cutter Suction Dredger is capable of cutting a wide range of soil types. Although precise and relatively efficient, a CSD can spill significantly. The authors propose a preliminary model which describes spillage due to centrifugal advection.
Which slurry transport regime should be used and why?
With five possible flow regimes to choose from for slurry transport, selecting just one can require consideration. Fortunately, one of these regimes has a simple criterion: a ratio of the particle diameter to the pipe diameter.
Modelling the effect of water depth on rock cutting processes with the use of discrete element method
Efficient rock cutting is still a challenge in the dredging industry. A new method that takes into account the effect of water depth could refine rock cutting processes.