Video taken at the marked location in the bottom-right image on the left-hand side.
Video taken at the marked location in the bottom-right image on the left-hand side.
The image panel and video show the evolution of the braided channel of the Yellow River and the construction of a new floodplain protection work, immediately downstream of the Weitan permeable pile dikes.
River channel from 2017 to 2023. Video generated using Sentinel-2 Land Cover Explorer. The location of the new floodplain protection work is at the center of the frame.
This video shows a typical scenario of composite scour processes at a bridge site in a compound river channel.
General sediment transport and bedform migration occurred in the main channel. Clear-water regime prevailed on floodplain.
A bridge abutment and the adjacent embankment were constructed on the floodplain, contracting the flow passage area and diverting the flow towards the main channel.
Riprap was the primary scour countermeasures here which was designed to protect the abutment toe area. However, riprap stones may also be undermined during scour and create a complicated mechanism of fluid-sediment-riprap interaction.
Oscillatory scour processes at a pile-supported complex bridge pier under steady current and co-directional regular waves.
A supercritical breaking bore passing over an embankment made by compacted sand.
The experiment was conducted in a tsunami flume which uses an electronically controlled sluice gate to produce breaking bones, mimicking tsunami, dam-break flow, tidal bores, etc.