基于HEC-RAS模型的萨莫拉河水位流量关系设计

HEC- RAS Model Based Design of Rating Relation of Samola River

系统地介绍了美国HEC-RAS模型的计算原理。并以南美洲厄瓜多尔东南部萨莫拉河Monkeys峡谷段河道的建模计算为例,探讨了该河段水位流量关系的基本特征。结果表明:HEC-RAS模型分析计算能力强大,能够适应南美洲峡谷段河道水位流量关系设计要求,加之可视化程度较高,模拟效果较好,便于后期成果提取和应用。在条件允许的情况下采用可靠的实测资料,能够大幅度提高模型的计算精度。

The calculation principle of the U. S HEC- RAS model is introduced systematically in the paper. With the modeling calculation of the river course at Monkeys valley of the Samola River in southeast Ecuador for example,the basic features of the rating relation at this river section are analyzed. The analyzing results show that the HEC- RAS model is outstanding in terms of analysis and calculation. It can satisfy the requirement on design of the rating relation of the river sections at the valleys in south America. Additionally,it is visual strongly and simulates effectively. These allow extraction and application afterward. The measured data can be applied to improve largely the calculation precision of the model provided that certain conditions are available.