Experiment Study on Sediment Control and Sediment Discharge of Lake-Type Reservoir on Sediment-Laden River

Taking Derisubaoleng Reservoir as an example, the experiment is mainly based on physical model and numerical simulation to study the effect of sediment control and discharge of the sediment retaining weir. With the help of the reservoir terrain a sediment retaining weir is built to form a“ deputy reservoir” ,which makes the sediment passing road more narrow, As a result, the ability of sluicing sediment is stronger than before. The purpose of this paper is to search a new idea to solve sediment problem in lake-type reservoir on sediment-laden river. The study result indicates that the sediment retaining weir both can prevent sediment being deposited in north “deputy reservoir” and can enhance the ability of sediment discharge in south “main reservoir” . Thus ,the sediment retaining weir is a effective engineering measure to solve sediment problem in lake-type reservoir.