摘要
城市河道枯水期缺水现象日益显著,为解决城市河道枯水期生态水位和景观水位不足的问题,以深圳观澜河流域长坑水河为例,采用HEC-RAS一维水动力模型计算水面线。以长坑水50年一遇洪水工况下的水面线对HEC-RAS进行率定验证,分析该模型模拟河道水面线的合理性。再对城市河道枯水期不同补水方案进行模拟对比分析,从而确定河道补水最佳方案,来满足长坑水河道生态景观等需求用水,也可给其他城市河道生态景观设计提供参考。
The phenomenon of water shortage in urban rivers during dry season is becoming more and more obvious. In order to solve the problem of insufficient ecological water level and landscape water level in urban rivers during dry season, the Changkeng River in Guanlan River Basin of Shenzhen is taken as an example to calculate the water surface line by HEC-RAS one-dimensional hydrodynamic model. The HEC-RAS was validated by the water surface line under the 50-year flood condition of Changkeng Water, and the rationality of the model to simulate the river surface line was analyzed. Then, the simulation and comparative analysis of different water replenishment schemes in urban rivers during the dry season will be carried out to determine the best scheme for river hydration to meet the demand water of Changkeng waterway ecological landscape, and also provide reference for river ecological landscape design in other cities.
作者
陈相威
孙大伟
王京
粟一帆
CHEN Xiang-wei;SUN Da-wei;WANG Jing;SU Yi-fan(College of Civil Engineering ＆ Architecture,China Three Gorges University,Yichang 443002,China;China Power Construction Group Beijing Survey and Design Institute Co.,Ltd.,Beijing 100000,China;College of Hydraulic and Environmental engineering,China Three Gorges University,Yichang 443002,China)
出处
《价值工程》
2018年第32期185-188,共4页
Value Engineering
关键词
城市河道
HEC-RAS
生态补水
模拟验证
urban river channel
HEC-RAS
ecological hydration
simulation verification
