苗尾水电站溢洪道结构与基础处理优化设计  

Optimization Design of Spillway Structure and Its Foundation Treatment of Miaowei Hydropower Project

作　　者：孙来[1] 鄢镜[1] 郑惠峰[1] 王栋良[1] 

机构地区：[1]中国电建集团华东勘测设计研究院有限公司,浙江杭州311122

出　　处：《云南水力发电》2017年第B07期27-31,共5页Yunnan Water Power

摘　　要：结合水工模型试验及技施阶段现场施工情况,对苗尾水电站岸边溢洪道布置、水力设计、结构设计及基础处理设计的优化情况进行介绍。苗尾水电站地处云南澜沧江中游峡谷,具有下泄流量大、水头高等特点。因下游消能区基岩抗冲能力差,故泄洪消能设计经多方案比选,泄洪消能建筑物采用岸边开敞式溢洪道全表孔布置方案,溢洪道采用差动式挑流鼻坎消能,下游防冲建筑物采用护岸不护底的方案。The paper deals with introduction of optimization of the arrangement, the hydraulic design, the structural design and the design of foundation treatment of the bank spillway of Miaowei hydropower station according to the hydraulic model test and the site construction situation in the construction stage. The Miaowei Hydropower Station is located in the medium reaches valley of the Lancang River in Yunnan Province, which is characterized by large discharge and high water head. In view of that the erosion-resisting capability of the bed rock is poor in the downstream energy dissipation zone, the bank open type crest outlet spillway with differential flip bucket energy dissipation was selected after comparison of a number of alternatives in terms of spillway energy dissipation, and the downstream erosion-resisting structure is protected for its bank side not for its bottom.

关 键 词：溢洪道 基础处理 结构设计 优化 挑流消能 

分 类 号：TV651.1[水利工程—水利水电工程]