Abstract: A new design philosophy for granular bed protection is given; this is referred to as the “critical scour” method. Critical scour is defined as the scour that is admissible for protection of a granular bed during its lifetime. ...

Abstract: A tidal channel in the Eastern Scheldt estuary in the Netherlands is closed by pumping a sand‐water mixture into the closure gap. During the closure, fields measurements of flow velocities and sand concentrations are carried ...

Abstract: Field surveys and experiments in a tilting flume on hyperconcentrated sand‐water mixture (SWM) flows were conducted. At slopes slightly smaller than the equilibrium slope, a rapid development of sand bars propagating ...