| In the Muka River, significant sediment loss from the river bed has led to the exposure of highly erodible layers such as volcanic ash and weak sedimentary rocks, resulting in rapid riverbed degradation. We need an effective erosion control measure to protect revetments from bedrock erosion. Commonly used groundsill is insufficient in preventing bedrock erosion at some specific locations (e.g., the downstream of the structures). In fact, in some cases groundsill is found to escalate riverbed degradation.
In this paper, we conducted laboratory and field experiments to develop an effective and efficient erosion control measure in a mixed bedrock-alluvial river. |
