挑距受限情况下挑流消能的体型优化
Optimization of flow dissipation structure under constrained span conditions
付庭玉1
作者信息
- 1. 安徽荣景工程设计咨询有限公司,安徽 合肥 230051
- 折叠
摘要
新建拜年山水库溢洪道采用连续式挑流消能,为避免泄洪对溢洪道下游右岸进场道路及岸坡造成冲刷破坏,通过分析鼻坎挑角、挑坎顶高程等因素对挑距的影响和比较不同方法在计算结果上的差距,将溢洪道挑流体型调整为挑弧半径 11.0 m、挑坎顶高程 288.50 m、挑角 20°,增设下游钢筋混凝土护坦能有效减轻冲刷破坏,可为类似工程提供参考和借鉴.
Abstract
To prevent erosion and damage to the downstream right bank access road and slope due to flood discharge,the spill-way chute of the new Bainianshan Reservoir adopts a continuous flow dissipation structure.By analyzing factors such as the nose angle,crest elevation,and their impact on the span,and comparing different methods based on calculation results,the spillway chute flow dissipation structure was adjusted to include a nose radius of 11.0 meters,crest elevation of 288.50 meters,and an angle of 20°.Additionally,downstream reinforced concrete aprons were added to effectively reduce erosion damage.This design can serve as a reference for similar projects in the future.
关键词
挑流消能/挑距/冲刷破坏/挑流鼻坎/体型优化Key words
trajectory energy dissipation/throw distance/erosion damage/trajectory bucket/shape optimization引用本文复制引用
基金项目
安徽省自然科学基金项目(2008085MD118)
出版年
2024
国家科技期刊平台
NSTL
万方数据