梯级水库上水库泄洪能力对下水库设计洪水计算影响实例浅析

梯级水库设计洪水计算是根据上、下游水库的情况从上而下逐层进行分析计算。本文通过两个水库的实例，对梯级水库设计洪水进行分析，在一般情况下，下游水库的设计洪水由上游水库的泄流过程与区间洪水组成，但还应对上游水库泄洪是否改变了天然洪水状况及其对下游的影响程度进行分析，重点分析上游水库的调洪影响和区间洪水的地区组成，从而选择合适的计算方法。通过该种方式的分析与思考，可以为梯级水库设计洪水的计算方法提供有益的借鉴。

A brief talk on the example of the capability of the upstream reservoir in cascade Reservoir flood discharge impact on the calculation of design flood in downstream reservoir

Cascade reserxoirs design flood calculation is based on the situation reserxoir downstream from the bottom layer by layer analysis and calculation,by way of example two reserxoirs of cascade design flood for analysis in the paper,in gen-eral,the design flood of the downstream reserxoir consists of the discharge process of the upstream reserxoir and flood inter-xal between two reserxoirs,but also need to specific analysis on the upstream reserxoir spillway changed the natural flood situation and the influence on the degree of the downstream. Focus on the analysis of the influence of flood regulation and the regional flood of the upper reaches of the reserxoir,regional flood composition of interxal flood,and select the appropri-ate calculation method. It can proxide a useful reference for the calculation by cascade design flood analysis and thinking of the ways.