五道库水电站溢洪道规模比较剖析

Analysis of Wudaoku Hydropower Station Spillway Scale Comparison

结合五道库水电站设计实例,进行溢洪道方案比选,由于重力坝和堆石坝的防洪标准不同,对于溢洪道的规模需单独进行比较。溢洪道选择河岸式溢洪道、溢流坝(有闸)及溢流坝(无闸)3个方案进行比较。在溢洪道结合坝型的比较方案中选出最优方案,结合枢纽布置比选,最终选定经济合理的设计方案。

In combination with the design example of the Wudaoku Hydropower Station,the spillway schemes are compared in the study.The spillway scale needs to be compared independently due to different flood control standards of gravity dams and rock-fill dams.The selected spillway includes three schemes,namely the river-bank spillway,overfall dam（with gate） and overfall dam（without gate）,and three schemes are compared.Based on the pivot arrangement comparison,the optimal scheme is selected as the final economic and reasonable design scheme in combination with spillway and dam type comparison schemes.