HEC-RAS和MIKE11模型的英那河水面线计算对比分析  

Comparison and Analysis of Calculation of Surface Line of Yingna River with HEC-RAS and MIKE11 Models

作　　者：高清震 GAO Qing-zhen(Zhuanghe Urban Water Affairs Service Center, Zhuanghe 116400, China)

机构地区：[1]庄河市水务事务服务中心,辽宁庄河116400

出　　处：《黑龙江水利科技》2020年第4期68-72,共5页Heilongjiang Hydraulic Science and Technology

摘　　要：文章以辽宁省庄河市英那河段为例,对河道水文面线利用MIKE11和HEC-RAS模型计算,通过对比实测水位数据计算了模型精度,综合考虑河道糙率、初始水位等水文参数,分析了模型的敏感性特征。研究表明:较HEC-RAS模型水面线计算,MIKE11模型的具有更高的精度和水位结果,引起水面线结果存在差异的关键原因为两个模型对河槽糙率的敏感性不同,其中对糙率更为敏感的为MIKE11模型;在推算英那河水面线时MIKE11模型具有更强的适用性和可行性。Taking the Yingna river section in Zhuanghe Cityo,Liaoning province,as an example,this paper uses MIKE11 and HEC-RAS models to calculate the hydrologic plane of the river course,calculates the model precision by comparing the measured water level data,and analyzes the sensitivity characteristics of the model by taking into account the hydrological parameters such as the initial water level of the river course roughness.The study shows that compared with HEC-RAS model,MIKE11 model has higher accuracy and higher water level results.The key reason for the difference in water level line results is that the two models have different sensitivity to channel roughness,among which,MIKE11 model is more sensitive to roughness.MIKE11 model has stronger applicability and feasibility in calculating the surface line of the Yingna river.

关 键 词：河道糙率 水面线 HEC-RAS MIKE 英那河 

分 类 号：TV122[水利工程—水文学及水资源]