Gabion Scour Mitigation: Effects of Porosity and Tailwater Depth

Gabion grade-control structures (GCSs) reduce downstream riverbed scour by up to 38% in depth and 44% in length compared to solid impermeable structures, according to a laboratory study using a recirculating tilting flume. The research indicates that increasing structural porosity—specifically to levels around 0.45—and increasing tailwater depth are the most effective variables for stabilizing channel … Read more