Equilibrium Sediment Transport and Evolution Trend Simulation of the Lower Yellow River

Abstract

The non-equilibrium development of the scouring and silting evolution of the Lower Yellow River is caused by the different characteristics of river channel. On the basis of the water and sediment data of the Lower Yellow River between 1960 and 2008, statistic method was used to analyze the sediment transport of different discharges flow. The combination of 2500 m3/s < Q < 4000 m3/s and 20 kg/m3 < S < 60 kg/m3 is considered a better combination for the Lower Yellow River. Combined with the model experiments data, the evolution trend of the Lower Yellow Rive channel in the later sediment-retaining period of Xiaolangdi Reservoir were analyzed, and the importance of the equilibrium development of the upper and lower reaches in the later sediment-retaining period of Xiaolangdi Reservoir was pointed out.

Keywords

• Model test
• Lower yellow river
• Equilibrium sediment transport
• Regulation value