摘要
沟水坡水库溢洪道除险加固工程受地形条件限制体形复杂,涉及弯道、收缩等复杂的水力学问题,为了验证原设计方案的合理性,采用几何比尺1∶50的正态水工模型系统研究了溢洪道的泄流能力、流态、流速、压力及下游消能防冲情况等。针对弯道水流和下游消能不佳的问题,通过在溢流堰段增设导流墩,使水流分布均匀且主流居中,流态较原设计方案明显改善,不仅消能效果提升显著,而且减少了水流对右岸边坡的淘刷。
The reinforcement of the spillway of Goushuipo Reservoir is restricted by the topography and involves complicated hydraulic issues such as bend and contraction. In order to verify the rationality of the original design scheme, in this paper, a normal hydraulic model with 1:50 geometric scale was used to study the discharge capacity, flow velocity, pressure, energy dissipation and scour prevention of the spillway. In order to solve the issue of poor energy dissipation in the bend flow and downstream, a diversion pier was added in the overflow weir section to make the flow distribution uniform and the mainstream centered, and the flow pattern was obviously improved compared with the original design scheme, which not only improved the energy dissipation effect obviously, but also reduced the scouring of water flow on the right bank slope.
作者
赵雪萍
李璐
赵玉良
李松平
苏晓玉
崔洪涛
王建华
ZHAO Xueping;LI Lu;ZHAO Yuliang;LI Songping;SU Xiaoyu;CUI Hongtao;WANG Jianhua(Henan Provincial Water Conservancy Research Institute,Zhengzhou 450003,China;Henan Keda Water Conservancy Survey and Design Co.,Ltd.,Zhengzhou 450003,China;College of Civil Engineering and Architecture,Zhejiang University,Hangzhou 310058,China;Henan Provincial Key Laboratory of Water Conservancy Engineering Safety Technology,Zhengzhou 450003,China)
出处
《人民黄河》
CAS
北大核心
2022年第5期128-131,146,共5页
Yellow River
基金
河南省水利科技攻关计划项目(GG202115)。
关键词
模型试验
泄流能力
弯道水流
导流墩
消能率
沟水坡水库
model test
discharge capacity
bend flow
diversion pier
energy dissipation rate
Goushuipo Reservoir
