小浪底水库泄水孔洞调度方案比选研究.

Preventing sediment siltation in front of intake tower group of the Xiaolangdi Reservoir affects the safety operation and the generation benefits of the project. It is vital to determine a proper operation dispatch scheme of the outlet structures. This paper did the numerical research on the prevention of silt plug in the Xiaolangdi Reservoir by a vertical 2D numerical model. The bed evolution, sediment delivery ratio and generation benefit were discussed under typical water and sediment conditions with the two different dispatch schemes of the outlets. The results of the numerical modeling show that neither of the dispatch schemes will cause the sediment siltation and the scheme I shows a better performance in promoting the generation benefits. The present work provides the technical support for the operation dispatch scheme of outlets in engineering practices. [ABSTRACT FROM AUTHOR]