不同边坡比的梯型断面河道水力学研究

The study of water mechanics in the trapezoidal section with different slope

在河道中建立3种不同边坡比的梯型断面,通过物理模型试验测量河道的上下游水位、流速、流态,得出了随着边坡比的增加河道断面的水力学参数都发生了不同变化,故在满足河道边坡比规范下,修建河道应尽量取边坡比较小,同时对于不同河道梯型断面的修建进行了综合分析。

Establishes three trapezoidal sections with different slope ratios in the river course, and measures the upstream and downstream water level, velocity and flow regime of the river by physical model test. It is concluded that the hydraulic parameters of the river section of the different changes, so in the river slope to meet the specifications, the construction of the river should try to take the slope is relatively small, while the construction of different sections of the trapezoidal section to be comprehensive analysis.