摘要
在清水河整治工程中,为研究吴家河湾5号裁弯对河湾冲淤、河势演变的影响,采用了河工动床模型试验的方法,进行了天然状态河湾和引河不同工况的试验,揭示了在不同试验条件下河湾的冲淤、河势变化的演变规律,得出引河裁弯是必要的,表明引河工程布置和初期宽度60 m是适合的、单侧防护是合理的、引河内的消能措施是不必要的、上下游防护工程是必要的,为优化工程设计提供了可靠的试验和理论依据,也为多泥沙河流动床物理模型试验和裁弯取直设计积累宝贵的经验。
In Qingshui river regulation project, in order to study the effect of Qingshui river Wujiahewan 5# curving cut - off on river scour and silting, form evolution, with the movable - bed model test method was used, the natural state river bend and under different conditions of the pilot river development were are tested, which revealed the scour and silting form evolution of the river bend under different experimental conditions, it concluded that The results show that the curving cut - off was is necessary, moreover, showed the pilot river development layout and initial width of 60 m were are suitable; single Single side slab - lined was is reasonable; energy Energy dissipation measures were are not necessary, upstream Upstream and downstream protection engineering was is necessary. The study providesd reliable experimental and theoretical basis for the optimization of engineering design, also accumulated valuable experience for sediment - laden river movable - bed model test and the design of curving cut - off.
作者
申明平
SHEN Mingping(Ningxia Water Resources and Hydropower Construction Engineering Quality Supervision Station, Yinchuan 750001, China)
出处
《人民珠江》
2017年第5期47-52,共6页
Pearl River
关键词
多泥沙河流
河道整治
裁弯
动床物理模型
sediment - laden river
river regulation
curving cut - off
movable - bed model
