Research on Application of Removable Non-Rescue Submerged Groins in Lower Yellow River Training Works

To control river regime change, systematic river training works have been built on the Lower Yellow River. However, with the operation of the Xiaolangdi Reservoir, great changes have taken place in the incoming water and sediment in the lower reaches, and the control effect of the river training works on the river regime has been weakened. Aimed at the abnormal river regime occurring in the Lower Yellow River, and considering the peculiarity of buttress locations in further works construction, this paper suggests constructing removable non-rescue submerged groins on the existing training works, and makes analysis of their locations and main design parameters, so as to further strengthen the control effect of river training works on the river regime while reducing the impact on flood control to the lowest possible level.