中文摘要：

鱼梁洲生态开发项目位于崔家营库区,该河段为典型的鹅头型分汊河段,并在北汊有支流唐白河入汇。本文针对崔家营库区特点,考虑分汇流情况,运用一维恒定非均匀泥沙数学模型预测了工程前后库区泥沙淤积情况及其对洪水位的影响。计算成果表明,因崔家营电站为低水头径流式航电枢纽,库区淤积变形不大,且鱼梁洲生态开发项目对库区泥沙淤积以及洪水位的影响也不大。数学模型计算成果可以为鱼梁洲生态开发项目的防洪论证以及工程的设计优化提供参考。

英文摘要：

Yuliangzhou Eco-development Project is located in the braided reach of the Cuijiaying Reservior,and the Tangbaihe River flows into the northern part of the branch.Based on the characteristics of the Cuijiaying Reservior and the braided reach,1-D steady non-uniform sediment mathematical model is used to investigate riverbed deformation and floodwater level changes of the Cuijiaying Reservoir caused by the eco-development project.The results show that the sediment deposition variation is trifling because the Cuijiaying Power Station is a low-head runoff river power station,so it affects sediment deposition and floodwater level caused by theYuliangzhou Eco-development Project.The mathematical model results provide Yuliangzhou Eco-development Project with a reference for flood prevention and engineering design optimization.