Stone Stability in Non-uniform Flow

This paper presents the results of an experimental study on stone stability under nonuniform turbulent flow, in particular expanding flow. Detailed measurements of both flow and turbulence and the bed stability are described. Than various manners of quantifying the hydraulic loads exerted on the stones on a bed are extensively reviewed and...

Economical optimization of the maintenance of a river bed protection construction

This example of optimizing the maintenance by minimizing the sum of the present values of the tisk and the costs of repair in a certain plan peliod is a part of a study done by the author by order of the Delft University of Technology. In this study also a classification of ageing models and a definition of the usefulness of inspection is given....