云南水力发电2026，Vol.42Issue(5)：48-52,5.DOI:10.3969/j.issn.1006-3951.2026.05.012
重力坝表孔泄洪能力设计与模型试验论证分析
Design and Model Test Analysis of Flood Discharge Capacity for Gravity Dam Surface Holes
夏军忠 1苏秀娟2
作者信息
- 1. 云南省水利水电勘测设计研究院,云南 昆明 650051
- 2. 云南省水利水电勘测设计院有限公司,云南 昆明 650051
- 折叠
摘要
Abstract
The overflow surface hole of a gravity dam is a WES practical weir,with a crest elevation 4m lower than the normal water level and a maximum discharge flow of 191.6 m3/s.The original design scheme had a compact and reasonable overall layout,with a suitable depth and length of the dissipation pool.Through hydraulic model tests,it has been optimized to increase the current displacement and height by 1 meter by adding an aeration barrier to the discharge chute and a tail barrier to the dissipation pool.After optimization,the water flow along the way is basically positive pressure,and the flow state along the way is relatively smooth.The recommended design of the overflow surface hole and related optimization schemes in the test are safe and feasible.关键词
溢流表孔/泄洪能力/水工模型试验/掺气孔/消力池/尾坎Key words
overflow surface hole/flood discharge capacity/hydraulic model test/blending pore/dissipation pool/tail barrier分类
建筑与水利引用本文复制引用
夏军忠,苏秀娟..重力坝表孔泄洪能力设计与模型试验论证分析[J].云南水力发电,2026,42(5):48-52,5.
