Analysis on Reasonable Operation Mode of Newly Built Sediment Laden Reservoir

Abstract

The operation mode of the reservoir should be selected according to the task, Reservoir type, Reservoir capacity, reservoir runoff and sediment of the reservoir. For the river with much sediment, the different Operation mode of reservoir will affect the Sediment deposition pattern and sedimentation rate of the reservoir, and have a great impact on the difference of the reservoir. The selection of operation mode of newly-built reservoir with sediment is directly related to the operation period and operation benefit of the reservoir. How to select the operation mode of the reservoir to maximize the benefit of the reservoir has been discussed and studied by water conservancy workers in recent years. Taking Gahaishan reservoir in Kulun banner of Inner Mongolia as an example, the paper uses one-dimensional reservoir sediment mathematical model, combined with suspended load unbalanced sediment transport equation, flow sediment carrying capacity formula and resistance formula suitable for sediment laden rivers, and uses existing sedimentation data of reservoirs in similar basins for verification. This paper briefly describes how to calculate the sediment deposition for the newly-built sediment laden reservoir and how to reasonably select the appropriate operation mode.