Influence of the tunnel crossing the Yellow River in South Water to North Project on flow and sediment movement

The tunnel is one of the ways to cross the Yellow River in South Water to North Project.This paper has calculated and analyzed the influence of the project on the flood flow,sediment movement and river bed deformation,which is only referred to the tunnel method,using the 2D-horizontal unsteady numerical model and in the flood process once per 10000 years.It has been proved that there is little influence of the tunnel on flow and sediment movement in the flood process.