糯扎渡水电站溢洪道深化设计  

Detailed Design on the Spillway of Nuozhadu Hydropower Station

作　　者：杨再宏[1] 顾亚敏[1] 刘兴宁[1] 孙怀昆[1] 

机构地区：[1]中国水电顾问集团昆明勘测设计研究院,云南昆明650051

出　　处：《水力发电》2012年第9期31-34,共4页Water Power

摘　　要：糯扎渡水电站地处狭谷地区,泄洪最大水头182 m,溢洪道最大泄洪流量31 318 m3/s,泄洪功率达55 860MW,其规模为目前国内最大,泄洪消能问题十分突出。为此,在可研阶段对泄洪建筑物布置进行了多方案比选研究,在招标阶段进行了深化研究,结合整体水工模型试验及溢洪道单体、掺气减蚀、护岸不护底、泄洪雾化等专题研究,设计了适合该工程的大型岸边溢洪道,在溢洪道挑流鼻坎下游设置消力塘,有效解决了消能问题。As locating in a deep valley, the spillway of Nuozhadu Hydropower Station has a maximum flood head of 182 m, a maximum flood discharge of 31 318 m3/s and a flood power of 55 860 MW. All of them rank firsts in China at persent, so the energy dissipation of flood discharge is very important for this project. Some layout programs of spillway structure are compared in the stage of feasibility study, and detailed studies are also conducted in the stage of design tender. Based on overall hydraulic model tests and some specific researches on spillway structure, aeration to prevent cavitations, protection on banks and no protection on river bottom and the atomization of discharged water, the large river-bank spillway for this project are designed. The stilling pond arranged on the downstream of flip bucket has effectively solved the problem of energy dissipation.

关 键 词：高水头 大泄量 泄洪消能 溢洪道 设计 糯扎渡水电站 

分 类 号：TV651.1[水利工程—水利水电工程]