Author(s): Keigo Imori, Yasuharu Watanebe
Linked Author(s): Keigo Imori
Keywords: Soft rock, gravel, sediment, bed configuration, stability analysis
Abstract: When the layer of soft rock which exists under a gravel bed is exposed at river beds, the degradation speed of bed becomes very high. In recent years, river structures have been become unstable due to erosion of soft rock bed. A linear stability analysis is conducted for understanding the bed shape of soft rock rivers. The stability analysis in this paper reproduces the bed configuration of soft rock partially covered with sediment. It is found that the wavelength of the bed configuration of soft rock partially covered with sediment becomes long compared with the wavelength of an alternate bar
Year: 2017