桥街水电站泄水建筑物消能方案研究与分析

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英文篇名：Study and Analysis of Energy Dissipation Scheme for Sluice Structure of Qiaojie Hydropower Station 作者：寇甲兵 ; 米艳芳 英文作者：KOU Jia-bing;MI Yan-fang;Yunnan provincial survey and design institute of water conservancy and hydropower; 关键词：桥街水电站 ; 消能池 ; 消能方式 ; 水力模型试验 ; 消力墩 英文关键词：Qiajie hydropower station;;energy dissipation pool;;energy dissipation mode;;hydraulic model test;;baffle block 中文刊名：YNSD 英文刊名：Yunnan Water Power 机构：云南省水利水电勘测设计研究院; 出版日期：2019-04-15 出版单位：云南水力发电 年：2019 期：v.35;No.176 语种：中文; 页：YNSD201902010 页数：4 CN：02 ISSN：53-1112/TK 分类号：33-35+40

摘要

桥街水电站出口消能池受坝址区地形地质条件的限制,横断面布置为不对称形。结合消能池结构布置,就底流式消能中下挖式消能池和综合式消能池的消能效果展开对比研究,选取了合理的消能方式。通过水力模型试验,对所选消能池结构设计进行优化,试验结果表明不对称的扩大断面形式带来的过流能力加大效应明显低于其因不对称带来的对水流的扰动效应,池内自中部开始布设消能墩消能效果显著。无论从结构布置,还是消能效果方面,选用底流综合式消能池明显优于下挖式消能池。
        The energy dissipation pool at the outlet of Qiaojie Hydropower Station is confined by the topographic and geological conditions of the dam site area. Combined with the structure layout of energy dissipation pool, the energy dissipation effect of undercutting energy dissipation pool and comprehensive energy dissipation pool in the bottom flow energy dissipation is compared and studied, and a reasonable energy dissipation method is selected.Based on the hydraulic model test, the structure design of the selected energy dissipation pool is optimized.The test results show that the effect of increasing the flow capacity caused by asymmetric enlarged section is significantly lower than the disturbance effect. The energy dissipation effect of installing energy dissipation piers in the middle of the pool is remarkable. In terms of structure layout and energy dissipation effect, the bottom-flow comprehensive energy dissipation pool is obviously superior to the bottom-dig energy dissipation pool.

引文

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